Masaru SUZUKI
| Emeritus Professor etc. | Emeritus Professor |
Researcher Information
Research Keyword
Educational Background
Research Activity Information
Paper
- Simultaneous Measurements of 4He Confined in an Oriented Porous Membrane by 32 and 100 kHz Tuning Forks
Airi Kaneko; Junko Taniguchi; Masaru Suzuki; Mitsunori Hieda
Proceedings of the 29th International Conference on Low Temperature Physics (LT29), Journal of the Physical Society of Japan, 38, 011005, 22 May 2023, Peer-reviwed
International conference proceedings, English - Engineering nonlinear optical phenomena by arbitrarily manupulating the phase relationship amang the relevant optical fields
W. Liu; C. Ohahe; J. Zheng; M. Suzuki; K. Minoshima; H. Ogawa; T. Takano; M. Katsuragawa
Communications Physics, 5, 179-1-8, 2022, Peer-reviwed
Scientific journal, English - Structural Study of Adsorbed Helium Films: New Approach with Synchrotron Radiation X‑rays
Akira Yamaguchi; Hiroo Tajiri; Atsuki Kumashita; · Jun Usami; Y. Yamane·; A. Sumiyama; M. Suzuki; T. Minoguchi; Y. Sakurai; H. Fukuyama
J. Low Temp. Phys., Springer Science and Business Media LLC, 208, 5-6, 441-448, 2022, Peer-reviwed
Scientific journal, English - Effects of 3He impurities on the mass decoupling of 4He films
K. Ishibashi; J. Hiraide; J. Taniguchi; T. Minoguchi; M. Suzuki
Physical Review B, 102, 104104-1-6, 2020, Peer-reviwed
Scientific journal, English - Possible Thermodynamical Phase Slips in Superfluid 4He Confined in a 2.5-nm Channel of FSM
J. Taniguchi; K. Taniguchi; K. Kanno; M. Suzuki
Jounal of Low Temperature Physics, 201, 139-145, 2020, Peer-reviwed
Scientific journal, English - Structure of an inert layer of He 4 adsorbed on mesoporous silica
Junko Taniguchi; Kizashi Mikami; Masaru Suzuki
Physical Review B, American Physical Society, 100, 2, 03 Jul. 2019
Scientific journal, English - Ultrasound study of the mass decoupling of 4He inert films on mesoporous silica
J. Taniguchi; H. Ichida; M. Suzuki
Physical Review B, 99, 024112-1,4 (2019)., 99, 024112-1--4, 2019, Peer-reviwed
Scientific journal, English - Optical technology for arbitrarily manipulating amplitudes and phases of coaxially propagating highly discrete spectra
C. Zhang; K. Yoshii; D. Tregubov; C. Ohae; J. Zheng; M. Suzuki; K. Minoshima; M. Katsuragawa
Physical Review A, 100, 53836-1-10, 2019, Peer-reviwed
Scientific journal, English - Reentrant pinning of a 3He overlayer in a 3He-4He mixture film
K Okamura; J. Taniguchi; M. Hieda; M. Suzuki
Physical Review B, 100, 214508-1-4, 2019, Peer-reviwed
Scientific journal, English - Superlubrication by phonon confinement
Noriyuki Wada; Makoto Ishikawa; Takuma Shiga; Junichiro Shiomi; Masaru Suzuki; Kouji Miura
Physical Review B, American Physical Society, 97, 16, 161403(R)-1-5, 18 Apr. 2018, Peer-reviwed
Scientific journal, English - Tailored Raman-resonant four-wave-mixing processes
C. Ohae; J. Zheng; K. Ito; M. Suzuki; K. Minoshima; M. Katsuragawa
Optics Express, OSA - The Optical Society, 26, 2, 1452-1460, 22 Jan. 2018, Peer-reviwed
Scientific journal, English - Simple techonolgy to freely manipulating nonlinear optical frequency conversion processes
Weiyong Liu; Chiaki Ohae; Jian Zheng; Masaru Suzuki; Kaoru Minoshima; Masayuki Katsuragawa
Optics InfoBase Conference Papers, OSA - The Optical Society, 2018, 2018
International conference proceedings, English - Generation of 1.4-fs ultrafast single-cycle pulses with a repetition rate exceeding 100 THz by arbitrarily manipulating amplitude and phase
C. Zhang; K. Yoshii; D. Tregubov; C. Ohae; M. Suzuki; K. Minoshima; M. Katsuragawa
Optics InfoBase Conference Papers, OSA - The Optical Society, 2018, 2018
International conference proceedings, English - Torsional Oscillator Measurements, of Liquid 4He Confined in 2.5-nm Channel of FSM
K. Taniguchi; J. Taniguchi; M. Suzuki
Journal of Physics: Conference Series, 696, 012005-1-5, 2018, Peer-reviwed
International conference proceedings, English - Decoupling of Solid 4He layers under the Superfluid Overlayer
K. Ishibashi; J. Hiraide; J. Taniguchi; M. Suzuki
Journal of Physics: Conference Series, 969, 012011-1-5, 2018, Peer-reviwed
International conference proceedings, English - Twofold Torsional Oscillator Experiments from Film to Pressurized Liquid He-4 in a Nanometer-Size Channel
Kenta Demura; Junko Taniguchi; Masaru Suzuki
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 86, 11, 114601-1,-5, Nov. 2017, Peer-reviwed
Scientific journal, English - Tailored nonlinear optical process by manipulating the relative phases among the relevant electromagnetic fields
C. Ohae; J. Zheng; K. Ito; M. Suzuki; K. Minoshima; M. Katsuragawa
Optics InfoBase Conference Papers, OSA - The Optical Society, 2017, 2017, Peer-reviwed
International conference proceedings, English - Experimental observation of phonon generation and propagation at a MoS2(0001) surface in the friction process
Makoto Ishikawa; Noriyuki Wada; Takahiko Miyakawa; Hiroshi Matsukawa; Masaru Suzuki; Naruo Sasaki; Kouji Miura
PHYSICAL REVIEW B, 93, 20, 201401-1,-4, May 2016, Peer-reviwed
Scientific journal, English - Elementary process of nanoscale friction of superlubric C60 molecular bearings
Ogawa Ryouta; Itamura Noriaki; Suzuki Masaru; Miura Kouji; Sasaki Naruo
Abstract of annual meeting of the Surface Science of Japan, The Surface Science Society of Japan, 36, 155-155, 2016, 超潤滑C60分子ベアリング（グラフェン/C60/グラフェン界面構造）の分子力学シミュレーションを行い、上層グラフェンの走査過程のナノスケール摩擦のメカニズムを議論する。上層グラフェンをC60分子の六員環との格子整合性の良い方向に走査すると、C60分子のスティック・スリップ運動が周期的に生じる。特にスリップ運動前後の全ポテンシャルエネルギー面の変化に着目して、エネルギー散逸の素過程を明らかにする。
Japanese - Nano-sliding of an AFM tip on the graphite substrate using a tuning fork crystal resonator
Suzuki T.; Tanahara S.; Taniguti J.; Suzuki M.; Sasaki N.; Ishikawa M.; Miura K.
Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, 71, 2392-2392, 2016,我々は原子間力顕微鏡(AFM)探針と水晶マイクロバランス(QCM)を組み合わせた装置を開発し、ナノすべり摩擦の測定を行ってきた。この測定では摩擦によるエネルギー散逸をQ値の変化として得ることができる。本研究では音叉型水晶振動子を用いたグラファイト基板のナノすべり摩擦測定を報告する。
Japanese - Temperature dependence of the nano-sliding friction of graphite surface
Kobayashi T.; Oyamada T.; Taniguchi J.; Suzuki M.; Sasaki N.; Ishikawa M.; Miura K.
Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, 71, 2393-2393, 2016,我々は原子間力顕微鏡(AFM)探針と水晶マイクロバランス(QCM)を組み合わせた装置を開発し，ナノすべり摩擦の測定を行ってきた。この測定では摩擦によるエネルギー散逸をQ値の変化として得ることができる。本研究では温度を変化させ，グラファイト表面のナノすべり摩擦測定を報告する。
Japanese - Phonon Dispersion in the Friction Procces at MoS2(0001) Surface Dot
Wada N; Ishikawa M; Suzuki M; Sasaki N; Miura K
Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, 71, 2421-2421, 2016,MoS_2_(0001)基盤を水晶振動子電極上に接着し、任意の振幅で水平に振動させる。振動しているMoS_2_(0001)基盤をAFMの探針で押し、MoS_2_(0001)基板表面と探針先端の接触部での散逸エネルギーを水晶振動子の振幅の減衰量から見積もった。この際、MoS_2_(0001)表面上にドットを形成し、測定を行ったところ探針との摩擦によりフォノンが生まれ、分散していることが分かった。
Japanese - Dynamical Superfluid Response of He-3-He-4 Solutions Confined in a Nanometer-Size Channel
Kenta Demura; Junko Taniguchi; Masaru Suzuki
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 84, 9, 09406-1,-5, Sep. 2015, Peer-reviwed
Scientific journal, English - Dynamic friction of nanoscale sliding on a C<inf>60</inf> deposited film
Yuka Ikada; Shohei Tanahara; Tomohiro Oyamada; Daisuke Inoue; Shingo Machida; Junko Taniguchi; Masaru Suzuki; Makoto Ishikawa; Kouji Miura
e-Journal of Surface Science and Nanotechnology, Surface Science Society of Japan, 13, 135-138, 2015, Peer-reviwed
International conference proceedings, English - Friction and stiffness surface image using a quartz crystal microbalance
Shohei Tanahara; Daisuke Inoue; Shingo Machida; Yuka Ikada; Junko Taniguchi; Masaru Suzuki; Makoto Ishikawa; Kouji Miura
e-Journal of Surface Science and Nanotechnology, Surface Science Society of Japan, 13, 164-166, 2015, Peer-reviwed
International conference proceedings, English - Evidence for a Common Physical Origin of the Landau and BEC Theories of Superfluidity
S. O. Diallo; R. T. Azuah; D. L. Abernathy; Junko Taniguchi; Masaru Suzuki; Jacques Bossy; N. Mulders; H. R. Glyde
PHYSICAL REVIEW LETTERS, 113, 21, 215302-1,-5, Nov. 2014, Peer-reviwed
Scientific journal, English - Competition Between the Superfluid Overlayer and the Mobile Solid Layer of He-3-He-4 Mixture Films on Porous Gold
Junko Taniguchi; Toshio Mouri; Masaru Suzuki; Mitsunori Hieda; Tomoki Minoguchi
JOURNAL OF LOW TEMPERATURE PHYSICS, 175, 1-2, 414-419, Apr. 2014, Peer-reviwed
Scientific journal, English - Path Integral Calculation of He-4 in One-Dimensional Channel Model
Hajime Kiriyama; Junko Taniguchi; Masaru Suzuki; Takeo Takagi
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 83, 4, 0446019-1,-4, Apr. 2014, Peer-reviwed
Scientific journal, English - Nuclear magnetic resonance on He-3 confined in 2.8-nm channel of FSM16
Junko Taniguchi; Daiki Tanaka; Masaru Suzuki
27TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT27), PTS 1-5, 568, 2014, Peer-reviwed
International conference proceedings, English - Managing the Learning Quality in Physics by e-Learning Inprovement with Collaborative Education
M. Kanenaga; M. Suzuki; K. Abe; J. Nakamura; T. Takada; N. Kokubo; Y. Fuseya
JPS Conf. Proc., 1, 017018-1,-4, 2014
International conference proceedings, English - Physics Laboratory in UEC
T. Takada; J. Nakamura; M. Suzuki
JPS Conf. Proc., 1, 017031-1,-4, 2014, Peer-reviwed
International conference proceedings, English - Dynamical superfluid response of He-4 confined in a nanometer-size channel
Junko Taniguchi; Kenta Demura; Masaru Suzuki
PHYSICAL REVIEW B, 88, 1, 014502-1,-4, Jul. 2013, Peer-reviwed
Scientific journal, English - Slippage of 4He films and precursor phenomenon of superfluidity
Kei Noda; Ko Okamura; Junko Taniguchi; Masaru Suzuki; Mitsunori Hieda
Journal of Low Temperature Physics, 171, 5-6, 638-643, Jun. 2013, Peer-reviwed
Scientific journal, English - Double torsional oscillator measurements for 4He confined in 1D nano-porous medium FSM16 with a 2.8-nm channel
J. Taniguchi; K. Demura; M. Suzuki
Journal of Low Temperature Physics, 171, 5-6, 644-649, Jun. 2013, Peer-reviwed
Scientific journal, English - Nano-scale measurements of the energy dissipation using a quartz crystal resonator
Daisuke Inoue; Shingo Machida; Junko Taniguchi; Masaru Suzuki; Makoto Ishikawa; Kouji Miura
5th World Tribology Congress, WTC 2013, Politecnico di Torino (DIMEAS), 2, 1717-1719, 2013
International conference proceedings, English - Dynamical frictional force of nanoscale sliding
Daisuke Inoue; Shingo Machida; Junko Taniguchi; Masaru Suzuki; Makoto Ishikawa; Kouji Miura
PHYSICAL REVIEW B, 86, 11, 115411-1,-4, Sep. 2012, Peer-reviwed
Scientific journal, English - Dynamic friction of nano-sliding between graphite
Daisuke Inoue; Junko Taniguchi; Masaru Suzuki; Makoto Ishikawa; Kouji Miura
e-Journal of Surface Science and Nanotechnology, 10, 100-102, 14 Apr. 2012, Peer-reviwed
International conference proceedings, English - Phonon excitation for He-4 confined in nanometer-size uniform channel under pressure
Junko Taniguchi; Masaru Suzuki
26TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT26), PTS 1-5, 400, 2012, Peer-reviwed
International conference proceedings, English - Mechanical response of noble gas films to an oscillating substrate
Hajime Kobayashi; Junko Taniguchi; Masaru Suzuki; Kouji Miura; Ichiro Arakawa
26TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT26), PTS 1-5, 400, 012034-1,-5, 2012, Peer-reviwed
International conference proceedings, English - Mechanical response of He-4 films adsorbed on single-crystalline graphite
Kei Noda; Fumikazu Nihei; Hajime Kobayashi; Junko Taniguchi; Masaru Suzuki
26TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT26), PTS 1-5, 400, 012056-1,-4, 2012, Peer-reviwed
International conference proceedings, English - Anomalous suppression of superfluidity for He-4 in Gelsil glass
Kouetsu Mikami; Toshiaki Kobayashi; Junko Taniguchi; Masaru Suzuki; Keiya Shirahama
26TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT26), PTS 1-5, 400, 012048-1,-4, 2012, Peer-reviwed
International conference proceedings, English - Superfluidity and BEC of liquid He-4 confined in a nanometer-size channel
Junko Taniguchi; Rina Fujii; Masaru Suzuki
PHYSICAL REVIEW B, 84, 13, 134511-1,-5, Oct. 2011, Peer-reviwed
Scientific journal, English - Solidification of He-4 confined in a nanometer-size channel
Junko Taniguchi; Masaru Suzuki
PHYSICAL REVIEW B, 84, 5, 054511-1,-6, Aug. 2011, Peer-reviwed
Scientific journal, English - Path Integral Calculation of He-4 in Quasi-one-dimensional Channels
H. Kiriyama; J. Taniguchi; M. Suzuki; T. Takagi
JOURNAL OF LOW TEMPERATURE PHYSICS, 162, 5-6, 597-602, Mar. 2011, Peer-reviwed
Scientific journal, English - Mechanical Response of He-4 Films Adsorbed on Graphite with a Quartz Tuning Fork
F. Nihei; K. Ideura; H. Kobayashi; J. Taniguchi; M. Suzuki
JOURNAL OF LOW TEMPERATURE PHYSICS, 162, 5-6, 559-564, Mar. 2011, Peer-reviwed
Scientific journal, English - 22pPSB-44 Interface friction of Kr films adsorbed on single-crystalline mica substrate
Kobayashi H.; Taniguchi J.; Suzuki M.; Arakawa I.
Meeting Abstracts of the Physical Society of Japan, The Physical Society of Japan, 66, 0, 258-258, 2011, Peer-reviwed
Japanese - Superfluidity of liquid H4 e confined to one-dimensional straight nanochannel structures
Junko Taniguchi; Yosuke Aoki; Masaru Suzuki
Physical Review B - Condensed Matter and Materials Physics, 82, 10, 15 Sep. 2010, Peer-reviwed
Scientific journal, English - Superfluidity of liquid He-4 confined to one-dimensional straight nanochannel structures
Junko Taniguchi; Yosuke Aoki; Masaru Suzuki
PHYSICAL REVIEW B, 82, 10, 104510-1-5, Sep. 2010, Peer-reviwed
Scientific journal, English - Ultrasound Measurements of He-4 Confined in a Nano-porous Glass
Toshiaki Kobayashi; Junko Taniguchi; Ayanori Saito; Satoshi Fukazawa; Masaru Suzuki; Keiya Shirahama
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 79, 8, 084601-1,-6, Aug. 2010, Peer-reviwed
Scientific journal, English - Mechanical response of Kr films adsorbed on graphite substrate with a quartz tuning fork
Hajime Kobayashi; Junko Taniguchi; Masaru Suzuki; Kouji Miura; Ichiro Arakawa
INTERNATIONAL CONFERENCE ON SCIENCE OF FRICTION 2010 (ICSF2010), 258, 012018-1--6, 2010, Peer-reviwed
International conference proceedings, English - Development of a combined atomic force microscope with an AT-cut quartz resonator
Daisuke Inoue; Nariko Hosomi; Junko Taniguchi; Masaru Suzuki; Makoto Ishikawa; Kouji Miura
INTERNATIONAL CONFERENCE ON SCIENCE OF FRICTION 2010 (ICSF2010), 258, 012019-1-5, 2010, Peer-reviwed
International conference proceedings, English - Simultaneous Measurements of an Ultrasound and a Torsional Oscillator for Pressurized He-4 in a Nanoporous Glass
Toshiaki Kobayashi; Ayanori Saito; Junko Taniguchi; Masaru Suzuki; Keiya Shirahama
JOURNAL OF LOW TEMPERATURE PHYSICS, 158, 1-2, 250-255, Jan. 2010, Peer-reviwed
Scientific journal, English - Sliding Friction of Kr Films Adsorbed on Graphite
Hajime Kobayashi; Junko Taniguchi; Masaru Suzuki; Kouji Miura; Ichiro Arakawa
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 79, 1, 014602-1,-6, Jan. 2010, Peer-reviwed
Scientific journal, English - Nanocomposite Materials of Alternately Stacked C-60 Monolayer and Graphene
Makoto Ishikawa; Shu Kamiya; Shoji Yoshimoto; Masaru Suzuki; Daisuke Kuwahara; Naruo Sasaki; Kouji Miura
JOURNAL OF NANOMATERIALS, 2010, 891514-1,-6, 2010, Peer-reviwed
Scientific journal, English - Rotational Motion of C_60 in C60 Intercalated Graphite Films
N. Hosomi; M. Suzuki; D. Kuwahara; M. Ishikawa; M. Kato; K. Miura
Proceedings of World Tribology Congress 2009, 252, Sep. 2009, Peer-reviwed
International conference proceedings, English - Competition between the Slippage and the Superfluidity of 4He Films
H. Kobayashi; N. Hosomi; J. Taniguchi; Masaru Suzuki; T. Minoguchi
Proceedings of World Tribology Congress 2009, 270, Sep. 2009, Peer-reviwed
International conference proceedings, English - Sliding Friction of Multilayer Helium Films
Masaru Suzuki
Proceedings of World Tribology Congress 2009, 852, Sep. 2009, Peer-reviwed
International conference proceedings, English - Dynamical sticking of a solid He-4 film with superfluid overlayer
Nariko Hosomi; Junko Taniguchi; Masaru Suzuki; Tomoki Minoguchi
PHYSICAL REVIEW B, 79, 17, 172503-1,-4, May 2009, Peer-reviwed
Scientific journal, English - Size Dependence of Superfluidity for He-4 Confined in FSM16
Junko Taniguchi; Rina Fujii; Masaru Suzuki
25TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT25), PART 3, 150, 032108-1,-4, 2009, Peer-reviwed
International conference proceedings, English - Sliding Friction of Kr Films Adsorbed on Single-Crystalline Graphite Substrate
Hajime Kobayashi; Jyunko Taniguchi; Masaru Suzuki; Kouji Miura; Ichiro Arakawa
25TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT25), PART 3, 150, 032045-1,-4, 2009, Peer-reviwed
International conference proceedings, English - Competition between the Superfluidity and the Slippage of He-4 Films Adsorbed on Porous Gold
K. Ideura; H. Kobayashi; N. Hosomi; J. Taniguchi; M. Suzuki
25TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT25), PART 3, 150, 032032-1,-4, 2009, Peer-reviwed
International conference proceedings, English - Effect of He-3 on Superfluid He-4 Films Adsorbed on Grafoil
Nariko Hosomi; Junko Taniguchi; Masaru Suzuki; Tomoki Minoguchi
25TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT25), PART 3, 150, 032031-1,-4, 2009, Peer-reviwed
International conference proceedings, English - Significant softening of c(66) and hidden order parameter in the magnetic ordered state of La2-xCaxCoO4 (0.4 <= x <= 0.7)
K. Horigane; T. Kobayashi; M. Suzuki; K. Abe; K. Asai; J. Akimitsu
PHYSICAL REVIEW B, 78, 14, 144108-1,-6, Oct. 2008, Peer-reviwed
Scientific journal, English - High-field magnetostriction of the spin-state transition compound LaCoO3
Keisuke Sato; Mikhail I. Bartashevich; Tsuneaki Goto; Yoshihiko Kobayashi; Masaru Suzuki; Kichizo Asai; Akira Matsuo; Koichi Kindo
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 77, 2, 024601-1,-6, Feb. 2008, Peer-reviwed
Scientific journal, English - Torsional oscillator measurements of liquid He-4 confined in 2.2-nm channels of FSM
J. Taniguchi; M. Suzuki
JOURNAL OF LOW TEMPERATURE PHYSICS, 150, 3-4, 347-352, Feb. 2008, Peer-reviwed
Scientific journal, English - Sliding friction of multilayer He-4 films adsorbed on graphite
Nariko Hosomi; Masaru Suzuki
PHYSICAL REVIEW B, 77, 2, 024501-1,-8, Jan. 2008, Peer-reviwed
Scientific journal, English - Simultaneous measurements of an ultrasound and a torsional oscillator for 4He in a nanoporous glass
Toshiaki Kobayashi; Junko Taniguchi; Masaru Suzuki; Keiya Shirahama
Journal of Low Temperature Physics, 148, 5-6, 797-801, Sep. 2007
Scientific journal, English - Comparison between torsional oscillator and ultrasonic measurements of He-4 confined in nano-porous media
J. Taniguchi; H. Ichida; Y. Aoki; S. Fukazawa; M. Hieda; M. Suzuki
JOURNAL OF LOW TEMPERATURE PHYSICS, 148, 5-6, 791-795, Sep. 2007, Peer-reviwed
Scientific journal, English - Interfacial friction of He-3 films adsorbed on grafoil
Nariko Hosomi; Masaru Suzuki
JOURNAL OF LOW TEMPERATURE PHYSICS, 148, 5-6, 773-777, Sep. 2007, Peer-reviwed
Scientific journal, English - Sliding friction of helium films in the metastable state and its relaxation
Nariko Hosomi; Ayano Tanabe; Masaru Suzuki; Mitsunori Hieda
PHYSICAL REVIEW B, 75, 6, 064513-1,5, Feb. 2007, Peer-reviwed
Scientific journal, English - Physical properties of C-60 intercalated graphite films
T. Nakahara; N. Hosomi; J. Taniguchi; M. Suzuki; T. Sato; K. Abe; D. Kuwahara; M. Ishikawa; M. Kato; K. Miura
INTERNATIONAL CONFERENCE ON SCIENCE OF FRICTION, 89, 012002, 2007, Peer-reviwed
International conference proceedings, English - Sliding friction of Kr films adsorbed on graphite substrate
H. Kobayashi; J. Taniguchi; M. Suzuki; K. Miura; I. Arakawa
INTERNATIONAL CONFERENCE ON SCIENCE OF FRICTION, 89, 012006, 2007, Peer-reviwed
International conference proceedings, English - Sliding friction of Kr films adsorbed on graphite substrate
H. Kobayashi; J. Taniguchi; M. Suzuki; K. Miura; I. Arakawa
INTERNATIONAL CONFERENCE ON SCIENCE OF FRICTION, 89, 266, 2007, Peer-reviwed
International conference proceedings, English - Search of superfluidity of solid He-4 in a porous vycor glass by means of the ultrasound technique
T. Kobayashi; S. Fukazawa; J. Taniguchi; M. Suzuki; K. Shirahama
LOW TEMPERATURE PHYSICS, PTS A AND B, 850, 333-+, 2006, Peer-reviwed
International conference proceedings, English - Interfacial friction of He-4 films adsorbed on grafoil preplated with Kr
N. Hosomi; S. Takizawa; A. Tanabe; Y. Aoki; J. Taniguchi; M. Hieda; M. Suzuki
LOW TEMPERATURE PHYSICS, PTS A AND B, 850, 271-+, 2006, Peer-reviwed
International conference proceedings, English - Interfacial friction of He-4 films adsorbed on porous gold
J. Taniguchi; K. Wataru; K. Hasegawa; M. Hieda; M. Suzuki
LOW TEMPERATURE PHYSICS, PTS A AND B, 850, 279-+, 2006, Peer-reviwed
International conference proceedings, English - Slippage of nonsuperfluid 4He films adsorbed on Grafoil
Masaru Suzuki; Nariko Hosomi; Ayano Tanabe; Mitsunori Hieda
Journal of Physics and Chemistry of Solids, 66, 8-9, 1527-1531, Aug. 2005, Peer-reviwed
International conference proceedings, English - Slippage of He-4 films adsorbed on porous gold
K Wataru; J Taniguchi; M Hieda; M Suzuki
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 66, 8-9, 1535-1538, Aug. 2005
Scientific journal, English - Slippage of nonsuperfluid He-4 films adsorbed on Grafoil
M Suzuki; N Hosomi; A Tanabe; M Hieda
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 66, 8-9, 1527-1531, Aug. 2005, Peer-reviwed
Scientific journal, English - Mn-55 NMR in ferromagnetic perovskites RENi0.5Mn0.5O3 (RE = rare earth element)
K Asai; N Kobayashi; T Bairo; N Kaneko; Y Kobayashi; M Suzuki; Y Satoh; M Mizoguchi
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 74, 4, 1289-1296, Apr. 2005, Peer-reviwed
Scientific journal, English - Low-friction State of 4He Films Adsorbed on Grafoil
N. Hosomi; A. Tanabe; M. Hieda; M. Suzuki
J. Phys. Chem. Solids, 66, 1527-1531, 2005, Peer-reviwed
Scientific journal, English - Slippage of He-4 films adsorbed on grafoil
N Hosomi; M Suzuki; M Hieda
JOURNAL OF LOW TEMPERATURE PHYSICS, 134, 1-2, 37-42, Jan. 2004, Peer-reviwed
Scientific journal, English - Ultrasonic study on superconducting HoNi2B2C and Ho0.75Y0.25Ni2B2C
M Suetake; Y Takahashi; M Suzuki; K Abe; K Asai; K Kuroki; S Isida; H Takeya
PHYSICA B-CONDENSED MATTER, 329, 539-540, May 2003, Peer-reviwed
Scientific journal, English - Interfacial tension of He-3-He-4 mixture in the low temperature region
K Ohishi; M Suzuki; A Sato
PHYSICA B-CONDENSED MATTER, 329, 174-175, May 2003, Peer-reviwed
Scientific journal, English - Slippage of nonsuperfluid helium films
M Suzuki; M Hieda
PHYSICA B-CONDENSED MATTER, 329, 246-247, May 2003, Peer-reviwed
Scientific journal, English - QCM studies of He-4 films adsorbed on grafoil
T Ogura; N Hosomi; M Hieda; M Suzuki
PHYSICA B-CONDENSED MATTER, 329, 256-257, May 2003, Peer-reviwed
Scientific journal, English - High-resolution coherent Raman spectroscopy of vibrons in solid parahydrogen
K Kuroda; A Koreeda; S Takayanagi; M Suzuki; K Hakuta
PHYSICAL REVIEW B, 67, 18, 184303~1-5, May 2003, Peer-reviwed
Scientific journal, English - Temperature Dependence of the Raman Shift and Raman Width of Solid Parahydrogen: Effect of Vibron-Phonon Scattering
F. Le Kien; A. Koreeda; K. Kuroda; M. Suzuki; K. Hakuta
Jpn. J. Appl. Phys., 42, 3483-3489, 2003, Peer-reviwed
Scientific journal, English - Slippage of nonsuperfluid He-4 films on Ag
T Koike; M Hieda; M Suzuki
JOURNAL OF LOW TEMPERATURE PHYSICS, 126, 1-2, 391-396, Jan. 2002, Peer-reviwed
Scientific journal, English - Impurity effects on the slippage of nonsuperfiuid helium films
T Nishino; T Watanabe; M Hieda; M Suzuki; N Wada; K Torii
JOURNAL OF LOW TEMPERATURE PHYSICS, 126, 1-2, 397-402, Jan. 2002, Peer-reviwed
Scientific journal, English - Coherent Brillouin spectroscopy in solid parahydrogen
K Kuroda; JZ Li; M Suzuki; M Katsuragawa; K Hakuta
JOURNAL OF LOW TEMPERATURE PHYSICS, 125, 1-2, 39-48, Oct. 2001, Peer-reviwed
Scientific journal, English - Surface tension maximum of liquid He-3 - Experimental study
K Matsumoto; Y Okuda; M Suzuki; S Misawa
JOURNAL OF LOW TEMPERATURE PHYSICS, 125, 1-2, 59-67, Oct. 2001, Peer-reviwed
Scientific journal, English - Measurement of the energy decay rate for the first vibrational-excited-state in solid parahydrogen
JZ Li; M Suzuki; M Katsuragawa; K Hakuta
JOURNAL OF CHEMICAL PHYSICS, 115, 2, 930-932, Jul. 2001, Peer-reviwed
Scientific journal, English - Ultrasonic study on superconducting YNi2B2C
S Isida; A Matsushita; H Takeya; M Suzuki
PHYSICA C, 349, 1-2, 150-154, Jan. 2001, Peer-reviwed
Scientific journal, English - Mechanical response properties of He bilayer films on an oscillating hectorite
M Hieda; T Nishino; M Suzuki; N Wada; K Torii
JOURNAL OF LOW TEMPERATURE PHYSICS, 121, 5-6, 507-512, Dec. 2000, Peer-reviwed
Scientific journal, English - Slippage of nonsuperfluid helium films
M Hieda; T Nishino; M Suzuki; N Wada; K Torii
PHYSICAL REVIEW LETTERS, 85, 24, 5142-5145, Dec. 2000, Peer-reviwed
Scientific journal, English - Interfacial slippage of helium films on 2D mesoporous hectorite
M Hieda; M Suzuki; H Yano; N Wada; K Torii
PHYSICA B, 284, 125-126, Jul. 2000, Peer-reviwed
Scientific journal, English - Surface tension maximum of liquid He-3
K Matsumoto; S Hasegawa; M Suzuki; Y Okuda
PHYSICA B, 284, 198-199, Jul. 2000, Peer-reviwed
Scientific journal, English - Stimulated Raman scattering in liquid hydrogen droplet
S. Uetake; M. Katsuragawa; M. Suzuki; K. Hakuta
Phys. Rev. A, 61, 011803-011806, 2000, Peer-reviwed
Scientific journal, English - Interfacial friction of helium films physisorbed on two-dimensional mesoporous hectorite
M Hieda; T Nishino; M Suzuki; N Wada; K Torii
TRIBOLOGY LETTERS, 9, 3-4, 133-136, 2000, Peer-reviwed
Scientific journal, English - Stimulated Raman scattering in a liquid-hydrogen droplet
S Uetake; M Katsuragawa; M Suzuki; K Hakuta
PHYSICAL REVIEW A, 61, 1, art. no.-011803, Jan. 2000, Peer-reviwed
Scientific journal, English - Nonlinear Optical Processes in Solid Hydrogen: New Perspectives on Quantum Optics
K. Hakuta; M. Katsuragawa; M. Suzuki
3rd International Conference on Low Temperature Chemistry, Nagoya, Japan, July 26-30(1999) Invited Paper., 71-72, Jul. 1999
English - Nonlinear Optical Processes in Solid Hydrogen: New Perspectives on Quantum Optics
K. Hakuta; M. Katsuragawa; M. Suzuki
3rd International Conference on Low Temperature Chemistry, Nagoya, Japan, July 26-30(1999)., 71-72, Jul. 1999
English - Stimulated Raman Scattering in Solid Hydrogen based on Adiabatic Preparation of Anti-Phased State
M. Katsuragawa; J. Q. Liang; J.Z. Li; M. Suzuki; K. Hakuta
CLEO/QELS '99, Technical Digest, QthE2, Baltimore, USA, May 23-28 (1999), 195-196, May 1999
English - Elastic anomalies with the spin-state transitions in LaCoO3
S Murata; S Isida; M Suzuki; Y Kobayashi; K Asai; K Kohn
PHYSICA B, 263, 647-649, Mar. 1999
Scientific journal, English - Mechanical responses of helium films adsorbed on two-dimensional mesoporous hectorite
M Hieda; M Suzuki; K Torii; H Yano; N Wada
PHYSICA B-CONDENSED MATTER, 263, 370-372, Mar. 1999
Scientific journal, English - Elastic anomalies with the spin-state transitions in LaCoO3
S Murata; S Isida; M Suzuki; Y Kobayashi; K Asai; K Kohn
PHYSICA B, 263, 647-649, Mar. 1999, Peer-reviwed
Scientific journal, English - Elastic anomalies with the spin-state transitions in LaCoO3
S. Murata; S. Isida; M. Suzuki; Y. Kobayashi; K. Asai; K. Kohn
Physica B: Condensed Matter, Elsevier Science Publishers B.V., 263-264, 647-649, 1999
Scientific journal, English - Decoupling of He-3 films adsorbed on two-dimensional mesoporous hectorite
M Hieda; M Suzuki; K Torii; H Yano; N Wada
JOURNAL OF LOW TEMPERATURE PHYSICS, 113, 3-4, 363-368, Nov. 1998
Scientific journal, English - Surface tension of liquid He-3 under 8 T magnetic field
K Matsumoto; K Ichikawa; S Hasegawa; M Suzuki; Y Okuda
JOURNAL OF LOW TEMPERATURE PHYSICS, 113, 3-4, 567-572, Nov. 1998
Scientific journal, English - Absolute value of the surface tension of liquid He-4
K Nakanishi; M Suzuki
JOURNAL OF LOW TEMPERATURE PHYSICS, 113, 3-4, 585-590, Nov. 1998
Scientific journal, English - Ultrasonic study of the high temperature phase of Fe3O4
S Isida; M Suzuki; S Todo; N Mori; K Siratori
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 67, 9, 3125-3129, Sep. 1998
Scientific journal, English - Interfacial tension of phase-separated He-3-He-4 mixtures under pressure
K Ohishi; H Yamamoto; M Suzuki
JOURNAL OF LOW TEMPERATURE PHYSICS, 112, 3-4, 199-210, Aug. 1998
Scientific journal, English - Stimulated Raman scattering in solid hydrogen: Measurement of coherence decay
JZ Li; M Katsuragawa; M Suzuki; K Hakuta
PHYSICAL REVIEW A, 58, 1, R58-R60, Jul. 1998
Scientific journal, English - Stimulated Raman Scattering of Solid Hydrogen in the strong-coupling regime: measurement of the coherence decay time
M. Katsuragawa; J.Z. Li; M. Suzuki; K. Hakuta
International Quantum Electronics Conference '98, Technical Digest, QtuG23, San Francisco, USA, 68, May 1998
English - Solid hydrogen for nonlinear optics
M Suzuki; M Katsuragawa; RSD Sihombing; JZ Li; K Hakuta
JOURNAL OF LOW TEMPERATURE PHYSICS, 111, 3-4, 463-468, May 1998
Scientific journal, English - Stimulated Raman scattering with strong-coupling in solid hydrogen
M Katsuragawa; M Suzuki; JQ Liang; JZ Li; RSD Sihombing; K Hakuta
JOURNAL OF LOW TEMPERATURE PHYSICS, 111, 3-4, 497-502, May 1998
Scientific journal, English - Nonlinear Optics in Solid Hydrogen
K. Hakuta; M. Katsuragawa; M. Suzuki; R. S; D. Sihombing; J.Z. Li
Laser Application to Muon Science, Ibaragi, Japan, 115-121, Mar. 1998
English - Stimulated Raman Scattering in Solid Hydorogen
J. Z. Li; M. Katsurakgawa; M. Suzuki; K. Hakuta
Measurement of Coherence Decay, Phys. Rev. A, 58, 1, R58-R60, 1998
English - Interfacial tension of phase-separated He-3-He-4 mixtures under pressure
K Ohishi; H Yamamoto; M Suzuki
JOURNAL OF LOW TEMPERATURE PHYSICS, 110, 1-2, 703-708, Jan. 1998
Scientific journal, English - Nonlinear optics in solid hydrogen
M Katsuragawa; M Suzuki; RSD Sihombing; JZ Li; K Hakuta
LASER AND PARTICLE BEAMS, 16, 4, 641-648, 1998
Scientific journal, English - Dark-state coherence and stimulated Raman scattering in solid hydrogen
K Hakuta; M Katsuragawa; M Suzuki
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 355, 1733, 2405-2408, Dec. 1997
Scientific journal, English - He-3 impurity effects on the growth kinetics of He-4 crystals
M Suzuki; M Thiel; P Leiderer
JOURNAL OF LOW TEMPERATURE PHYSICS, 109, 1-2, 357-367, Oct. 1997
Scientific journal, English - Stimulated Raman Scattering with Strong-Coupling in Solid Hydrogen, Second International Conference on Cryocrystals and Quantum Crystals
M. Katsuragawa; M. Suzuki; J. Q. Liang; J.Z. Li; R. S; D. Sihombing; K. Hakuta
Abstracts and Programme, P2-3, Polanica-Zdroj, Poland, 2-3, Sep. 1997
English - Solid Hydrogen for Nonlinear optics, Second International Conference on Cryocrystals and Quantum Crystals
M. Suzuki; M. Katsuragawa; R. S; D. Sihombing; J.Z. Li; K. Hakuta
Abstracts and Programme, J-S19, Polanica-Zdroj, Poland, Sep. 1997
English - Parametric Anti-Stokes Stimulated Raman Scattering under Strong-Coupling Condition
M. Katsuragawa; J. Q. Liang; J.Z. Li; M. Suzuki; K. Hakuta
CLEO/Pacific Rim '97, Technical Digest, ThM4, Makuhari, 225, Jul. 1997
English - Self-induced phase matching in parametric anti-stokes stimulated Raman scattering
K Hakuta; M Suzuki; M Katsuragawa; JZ Li
PHYSICAL REVIEW LETTERS, 79, 2, 209-212, Jul. 1997
Scientific journal, English - Interfacial tension of phase-separated H-3-He-4 mixtures at saturated vapor pressure
A Sato; K Ohishi; M Suzuki
JOURNAL OF LOW TEMPERATURE PHYSICS, 107, 1-2, 165-173, Apr. 1997
Scientific journal, English - Pressure dependence of the 100 K spin-state transition in LaCoO3
K Asai; O Yokokura; M Suzuki; T Naka; T Matsumoto; H Takahashi; N Mori; K Kohn
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 66, 4, 967-970, Apr. 1997
Scientific journal, English - 3He Impurity Effects on the Growth Kinetics of 4He Crystal
Journal of Low Temperature Physics, 109, 1, 2,357, 1997
Scientific journal, English - The Royal Society
K. Hakuta; M. Katsuragawa; M. Suzuki
Discussion Meeting, Highlights in Quantum Optics, at The Royal Society, London, U. K. Invited Paper, Jan. 1997
English - Lock-in amplifier with autotracking bandpass filter
A Sato; A Ohara; Y Ogawa; M Suzuki
REVIEW OF SCIENTIFIC INSTRUMENTS, 67, 11, 4021-4022, Nov. 1996
Scientific journal, English - Pressure effect on the elastic constants of magnetite
S Isida; M Suzuki; S Todo; N Mori; K Siratori
PHYSICA B-CONDENSED MATTER, 219-20, 638-640, Apr. 1996
Scientific journal, English - Acoustic phonon dispersion of SiO2 (quartz) near the incommensurate phase transition
S Ishibashi; K Abe; M Suzuki; Y Sasaki; T Shigenari
PHYSICA B-CONDENSED MATTER, 219-20, 593-595, Apr. 1996
Scientific journal, English - Interfacial tension of phase-separated He-3-He-4 mixtures
A Sato; K Ohishi; M Suzuki
CZECHOSLOVAK JOURNAL OF PHYSICS, 46, 197-198, 1996
Scientific journal, English - He-3 impurity effects on the growth kinetics of He-4 crystals
M Suzuki; M Thiel; P Leiderer
CZECHOSLOVAK JOURNAL OF PHYSICS, 46, 459-460, 1996
Scientific journal, English - Superfluidity of He-4 in two-dimensional mesopores of hectrite
M Ilieda; M Suzuki; H Yano; N Wada
CZECHOSLOVAK JOURNAL OF PHYSICS, 46, 129-130, 1996
Scientific journal, English - SURFACE-TENSION AND MASS DENSITY OF DILUTE-SOLUTIONS OF HE-4 IN HE-3
A SATO; M SUZUKI
JOURNAL OF LOW TEMPERATURE PHYSICS, 99, 5-6, 727-744, Jun. 1995
Scientific journal, English - Ultrasonic Investigation of a Two-Dimensional Trianular Lattice Ferrimagnet, ErFe2O4-8 Single Crystal
Journal of the Physical Society of Japan, 64, 6, 214, 1995
Scientific journal, English - Ultrasonic Investigation of a Two-Dimensional Triangular Lattice Ferrimagnet, ErFe2O4−δ Single Crystal
Hijiri Kito; Susumu Isida; Masaru Suzuki; Jun Akimitsu; Shunji Takekawa; Kiiti Siratori; Kiiti Siratori
Journal of the Physical Society of Japan, 64, 6, 2147-2151, 1995
Scientific journal, English - ACOUSTIC-PHONON DISPERSION IN THE INCOMMENSURATE PHASE OF SIO2 (QUARTZ)
E TANAKA; S ISHIBASHI; K ABE; M SUZUKI; T SHIGENARI
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 64, 1, 136-141, Jan. 1995
Scientific journal, English - Surface Tension of Dilute Solutions of 4He in 3He
Physica B, 194-196, 387, 1994
Scientific journal, English - ANOMALOUS PINNING OF PT-DOPED SINGLE CRYSTALLINE LA1.88SR0.12CUO4 STUDIED BY ULTRASOUND
M SUZUKI; Y SATO; Y KASHIWAGI; Y OKUDA; Y HIDAKA
PHYSICA C, 208, 3-4, 333-338, Apr. 1993
Scientific journal, English - SURFACE-TENSION OF LIQUID-N2 NEAR THE LIQUID-VAPOR CRITICAL-POINT
A SHIMOYANAGITA; N ITAGAKI; A SATO; M SUZUKI
PHYSICA B, 165, 165-166, Aug. 1990
Scientific journal, English - ACOUSTIC MICROSCOPE USING PRESSURIZED SUPERFLUID HE-4
K KARAKI; M SUZUKI; Y OKUDA
JOURNAL OF APPLIED PHYSICS, 67, 4, 1680-1683, Feb. 1990, Peer-reviwed
Scientific journal, English - SOUND-VELOCITY ANOMALY OF YBA2CU3OY
M SUZUKI; Y OKUDA; IWASA, I; AJ IKUSHIMA; T TAKABATAKE; Y NAKAZAWA; M ISHIKAWA
PHYSICA C, 153, 266-267, Jun. 1988
Scientific journal, English - SURFACE-TENSION OF LIQUID-HE-3 FROM 0.4 K DOWN TO 15 MK
M SUZUKI; Y OKUDA; AJ IKUSHIMA; M IINO
EUROPHYSICS LETTERS, 5, 4, 333-337, Feb. 1988
Scientific journal, English - SURFACE-TENSION OF LIQUID-HE-4 AND HE-3
AJ IKUSHIMA; M IINO; M SUZUKI
CANADIAN JOURNAL OF PHYSICS, 65, 11, 1505-1509, Nov. 1987, Peer-reviwed
Scientific journal, English - SOUND-ATTENUATION IN HE-3-HE-4 LIQUID-MIXTURES UNDER PRESSURE
FUJII, I; AJ IKUSHIMA; M FUKUHARA; K KANEKO; M SUZUKI
JOURNAL OF LOW TEMPERATURE PHYSICS, 63, 5-6, 535-551, Jun. 1986, Peer-reviwed
Scientific journal, English - SURFACE-TENSION OF LIQUID-HE-3 AND HE-4 NEAR THE LIQUID GAS CRITICAL-POINT
M IINO; M SUZUKI; AJ IKUSHIMA
JOURNAL OF LOW TEMPERATURE PHYSICS, 63, 5-6, 495-506, Jun. 1986, Peer-reviwed
Scientific journal, English - SURFACE-TENSION OF LIQUID-HE-4 NEAR T-LAMBDA
M SUZUKI; M IINO; AJ IKUSHIMA
JOURNAL OF LOW TEMPERATURE PHYSICS, 63, 1-2, 129-137, Apr. 1986, Peer-reviwed
Scientific journal, English - SURFACE-TENSION OF LIQUID-HE-4 - SURFACE-ENERGY OF THE BOSE-EINSTEIN CONDENSATE
M IINO; M SUZUKI; AJ IKUSHIMA
JOURNAL OF LOW TEMPERATURE PHYSICS, 61, 1-2, 155-169, 1985, Peer-reviwed
Scientific journal, English - SURFACE-TENSION OF LIQUID-HE-3 DOWN TO 0.3-K
M IINO; M SUZUKI; AJ IKUSHIMA; Y OKUDA
JOURNAL OF LOW TEMPERATURE PHYSICS, 59, 3-4, 291-304, 1985, Peer-reviwed
Scientific journal, English
MISC
- 10aAS-11 Phonon Dispersion Curve of Dissipation Energy during Friction Process on MoS_2(0001) surface
Ishikawa Makoto; Suzuki Masaru; Sasaki Naruo; Miura Kouji
The Physical Society of Japan (JPS), 22 Aug. 2014, Meeting abstracts of the Physical Society of Japan, 69, 2, 676-676, Japanese, 1342-8349, 110009874297, AA11439205 - 24pBD-15 Interface friction of Kr films adsorbed on synthetic single-crystalline mica substrate II
Kobayashi H.; Taniguchi J.; Suzuki M.; Arakawa I.
The Physical Society of Japan, 2012, Meeting Abstracts of the Physical Society of Japan, 67, 0, 308-308, Japanese, 1342-8349, 110009565931, AA11439205 - 27pTF-3 Interface friction of Xe films adsorbed on single-crystalline graphite substrate
Kobayashi H.; Taniguchi J.; Suzuki M.; Miura K.; Arakawa I.
The Physical Society of Japan, 2011, Meeting Abstracts of the Physical Society of Japan, 66, 0, 333-333, Japanese, 1342-8349, 110008610919, AA11439205 - 24aTF-8 Sliding friction of Kr films adsorbed on single-crystalline graphite substrate
Kobayashi H.; Taniguchi J.; Suzuki M.; Miura K.; Arakawa I.
The Physical Society of Japan, 2010, Meeting Abstracts of the Physical Society of Japan, 65, 0, 233-233, Japanese, 1342-8349, 110008097323, AA11439205 - 25pQC-7 Sliding friction of Kr films adsorbed on single-crystalline graphite substrate
Kobayashi H.; Taniguchi J.; Suzuki M.; Miura K.; Arakawa I.
The Physical Society of Japan, 2009, Meeting Abstracts of the Physical Society of Japan, 64, 0, 164-164, Japanese, 1342-8349, 110007496556, AA11439205 - 21aVB-3 Sliding friction of Kr films adsorbed on single-crystalline graphite substrate
Kobayashi H.; Taniguchi J.; Suzuki M.; Miura K.; Arakawa I.
The Physical Society of Japan, 2008, Meeting Abstracts of the Physical Society of Japan, 63, 0, 208-208, Japanese, 1342-8349, 110006983153, AA11439205 - 25pWF-13 Sliding friction of Kr films adsorbed on single-crystalline graphite substrate
Kobayashi H.; Taniguchi J.; Suzuki M.; Miura K.; Arakawa I.
The Physical Society of Japan, 2008, Meeting Abstracts of the Physical Society of Japan, 63, 0, 316-316, Japanese, 1342-8349, 110007196322, AA11439205 - 20pTC-14 Interfacial Friction of Kr films Adsorbed on Graphite
Ohta K.; Ueda Y.; Taniguchi J.; Suzuki M.; Arakawa I.
The Physical Society of Japan, 2007, Meeting Abstracts of the Physical Society of Japan, 62, 0, 356-356, Japanese, 1342-8349, 110007193340, AA11439205 - "固体水素を用いた新しい光学過程"
桂川眞幸; 百瀬孝昌; 鈴木 勝; 是枝聡肇; 白田耕藏
2001, 光学, 30, 2, 111-116, Japanese, Introduction other - "吸着膜の摩擦"
鈴木 勝
アグネ技術センタ-, 2000, 固体物理, 35, 10, 845-851, Japanese, Introduction other, 0454-4544, 40001389866, AN00092629 - 31p-YR-12 Anomalous dispersion of acoustic phonon in the incommensurate phase of SiO_2 (Quartz)
Tanaka E; Ishibashi S; Abe K; Sasaki Y; Shigenari T; Suzuki M
The Physical Society of Japan (JPS), 16 Mar. 1994, Abstracts of the meeting of the Physical Society of Japan. Annual meeting, 49, 2, 113-113, Japanese, 110002162667, AN10451127
Books and other publications
- 物理を教える -物理教育研究と実践に基づいたアプローチ-
並木雅俊監訳; 興治文子; 鈴木勝; 副島雄児; 谷口和成; 安田淳一郎; 山本隆夫訳
Japanese, Joint translation, 第10,11,12,13,14章, 丸善出版, 28 Feb. 2017 - 物理学演習
阿部 浩二; 奥野 剛史; 中村 仁; 細見 斉子
Japanese, Joint work, 編著, 培風館, Apr. 2012 - 科学をどう教えるか
Japanese, Joint translation, 監訳者, 丸善, 2012 - 高圧技術ハンドブック
毛利信男; 村田恵三; 上床美也; 高橋博樹
Japanese, Joint work, 丸善, Jan. 2007 - 「実験物理学講座６：磁気測定 I 」
Japanese, Joint work, 丸善, 2000 - 「応用物理データブック」
Japanese, Joint work, 丸善, 1994
Lectures, oral presentations, etc.
- ナノスコピック系の摩擦の物理：摩擦の素過程と制御 「表面吸着系の摩擦の素過程と制御」
鈴木 勝
Invited oral presentation, Japanese, ２００７年春季大会, 日本物理学会
Mar. 2007 - グラファイト基板上のHe膜のスリップ現象II
小倉寿人; 細見斉子; 鈴木勝
Oral presentation, Japanese, 日本物理学会第５８回年次大会
Mar. 2003 - HoNi_2_B_2_C単結晶の電気伝導
木村敏昭; 鈴木勝; 黒木和彦; 石田進; 竹屋浩幸
Oral presentation, Japanese, 日本物理学会２００２年秋季大会
Sep. 2002 - グラファイト基板上のHe膜のスリップ現象
細見斉子; 小倉寿人; 鈴木勝
Oral presentation, Japanese, 日本物理学会２００２年秋季大会
Sep. 2002 - "高密度励起下におけるコヒーレントバイブロンの位相緩和"
桂川 眞幸; Fam Le Kien; 鈴木 勝; 白田 耕藏
Oral presentation, Japanese, 日本物理学会 2001年秋季大会（徳島）
Sep. 2001 - "固体水素における第一振動励起状態のエネルギー緩和"
J. Z. Li; 鈴木 勝; 桂川 眞幸; 白田 耕藏
Oral presentation, Japanese, 日本物理学会 2001年秋季大会 (徳島)
Sep. 2001 - "La_1-x_Sr_x_CoO_3_(x=0,0.1) パルス強磁場における磁化と磁歪"
佐藤圭輔; 後藤恒昭; 小林義彦; 鈴木勝; 浅井吉蔵
Oral presentation, Japanese, 日本物理学会 2001年秋期大会 (徳島)
Sep. 2001 - "グラファイト基板上のHe膜のスリップ現象"
小倉 寿人; 檜枝 光憲; 鈴木 勝
Oral presentation, Japanese, 日本物理学会 2001年秋期大会 (徳島)
Sep. 2001 - "He吸着膜のスリップ現象における不純物効果"
渡邊 武晴; 檜枝 光憲; 鈴木 勝; 和田 信雄
Oral presentation, Japanese, 日本物理学会 2001年秋期大会 (徳島)
Sep. 2001 - "HoNi2B2Cの超音波測定"
末武美樹; 高橋洋子; 鈴木 勝; 石田 進; 竹屋浩幸
Oral presentation, Japanese, 日本物理学会 第56回年次大会 (東京)
Mar. 2001
Research Themes
- 水晶マイクロバランスによる3He固体膜と4He固体膜の力学応答の研究
鈴木勝
01 Apr. 2021 - 31 Mar. 2024 - 量子モンテカルロ法を用いた低次元ヘリウム系における新奇な量子物性の研究
平島 大
01 Apr. 2021 - 31 Mar. 2024 - Superlubric control using structural change by compression of molecular bearing interface
Sasaki Naruo
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, The University of Electro-Communications, Grant-in-Aid for Scientific Research (B), The compression response characteristics of graphene/C60/graphene interface nanostructures was discussed. First, we focused on the compressive properties of the nanostructure in which a single C60 molecule is sandwiched between graphene sheets. Comparing the effective spring constant of the entire interface system with those of single C60 and of C60-graphene interlayer, it was clarified that the C60/graphene interface system can be regarded as a series spring of C60 single molecule spring and C60-graphene interlayer spring. Next, we focused on the graphene sheet, which is a component of the interface structure, and we developed an effective potential function that coarse-grained the Tersoff potential function, which represents a covalent bond. As a result, we succeeded in increasing the calculation speed of graphene adhesion to 10,000 times that of the conventional Tersoff function., 17H02785
01 Apr. 2017 - 31 Mar. 2020 - 摩擦制御を目指したナノ滑りでのエネルギー散逸の研究
01 Apr. 2017 - 31 Mar. 2020 - Nanomechanics of pi-figurated molecular machines
Sasaki Naruo; MIURA KOUJI; ITAMURA NORIAKI; SUZUKI MASARU
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, The University of Electro-Communications, Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area), Elucidation of nanomechanics of π-figurated molecular machine and proposal of precise measurement method have been performed as follows: We developed a model potential suitable for high-speed simulation of friction at the graphene interface, and succeeded in reducing the calculation time to about 1 / 10,000 of the previous one. We proposed a color AFM method to convert tip-surface interaction information into RGB color data and visualize it. We also proposed tribo-phonon spectroscopy (TPS) to detect energy dissipation dynamically using QCM-AFM. The polymer solution containing carbon nanotubes was stretched using a microfluidic device in order to produce a new cell scaffolding material. The compression and friction properties of the sumanene thin film adsorbed on the gold surface were evaluated by molecular dynamics method., 26102016
10 Jul. 2014 - 31 Mar. 2019 - Superlubric control of fullerene molecular bearings using graphene curvature
Sasaki Naruo; MIURA KOUJI; SUZUKI MASARU; ITAMURA NORIAKI
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, The University of Electro-Communications, Grant-in-Aid for Scientific Research (B), In order to investigate the influence of graphene curvature on superlubricity, molecular mechanics simulation of peeling process of monolayer graphene sheet adsorbed onto the graphite substrate was carried out. As the initial orientation angle of the graphene adsorption is varied little by little from the AB stacking orientation, the effect of lattice mismatch of the surface contact area appears, and the mean lateral force during the surface contact process markedly decreases to about 0 pN for the orientation angle of 9 deg. For larger orientation angle, the mean lateral force changed only slightly around 0 pN., 26286053
01 Apr. 2014 - 31 Mar. 2017 - エネルギー散逸像とトポ像の同時測定による動摩擦機構の解明
01 Apr. 2014 - 31 Mar. 2017 - Design of Friction-Controllable Fullerene Molecular Bearing Systems
SASAKI Naruo; MIURA Kouji; SUZUKI Masaru; ITAMURA Noriaki
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Seikei University, Grant-in-Aid for Scientific Research (B), Superlubricity of C60/graphene and graphene/graphene interfaces is studied by molecular mechanics simulation. First, for superlubricity of (graphene)n/C60/(graphene)n interface, difference between multilayer (n>1) and monolayer (n=1) systems are found. For monolayer, superlubricity is derived from only stacking relation between C60 and graphene. However, for multilayer, superlubricity is also derived from that between graphene and graphene, which opens an lower energy path. Next, it is found by theory and experiment that, for peeling and adhesion of graphene sheet, quasiperiodic lateral force curve is obtained due to stick-slip motion during surface contact region, whose period nearly corresponds to the lattice constant of graphite., 23360023
01 Apr. 2011 - 31 Mar. 2014 - Quantum Manipulation of Nuclear Spin of Ortho-H2 Molecule in Solid Hydrogen
HAKUTA Kohzo; SUZUKI Masaru; KATSURAGAWA Masayuki
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, The University of Electro-Communications, Grant-in-Aid for Scientific Research (B), We carried out the researches to establish a basis for manipulating nuclear-spin quantum-coherence of ortho-hydrogen molecule in solid hydrogen. Simultaneously, we developed a method to manipulate optical processes using optical nanofiber ; it was originally proposed to introduce a strong light into the solid hydrogen. Regarding the ortho-hydrogen project, we developed a highly-stable single-frequency cw laser at 2.4 μm wavelength using doubly-resonant OPO-technique. Ortho-hydrogen infrared transition (v=1-0, J=1-1) was measured systematically. We showed that the transition reveals an ultra-narrow spectral width of 1.6 MHz HWHM. This width is the narrowest width observed just using simple absorption spectroscopy, without using any nonlinear laser-spectroscopic method. Although density of ortho-hydrogen is very low 40 ppm, the peak absorption of 1-cm solid hydrogen crystal reaches to 60% ; it is due to the ultra-narrow spectral feature. We demonstrated also that the vibration-rotation spectrum splits into three components with splittings of about 10 MHz. The origin of the splitting may be understood due to breaking of magnetic degeneracy of J=1 state into three sublevels via crystal field. The observations have demonstrated that the ortho-hydrogen embedded in solid-parahydrogen is a unique system for realizing quantum coherence control in solid. The observed degeneracy breaking may open a new possibility to realize a new Raman three level scheme without magnetic field. Regarding the nanofiber, we established a method to produce nanofibers with diameter from 1μm to 400 nm with transmission of 80%. We showed theoretically a unique possibility to develop optical processes using nanofibers, very different from those in free space ; a key point is to confine both optical field and atoms/molecules into a submicron space around a nanofiber. We can manipulate single atom/molecule transition just using single photon. Moreover, spontaneous emission of atom/molecule near the nanofiber is strongly modified to emit photons into a guided mode of a nanofiber. We have observed experimentally the unique features of confinement in February of 2006. The observations imply that the nanofiber technique may open a new category of quantum optics., 15340131
2003 - 2005 - Lattice anomaly associaterd with the magnetic order in a re-entrant superconductor Ho_<1-x>Y_xNi_2B_2C
ASAI Kichizo; SUZUKI Masaru; KOBAYASHI Yoshihiko
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, The University of Electro-Communications, Grant-in-Aid for Scientific Research (C), In RNi_2B_2C(R=rare earth elements) the superconductivity and the magnetic order of the rare-earth elements coexist, (or compete), where the superconductivity, the magnetism, and the lattice dynamics are closely related to the others. When RE =Ho, the superconducting transition temperature (Tc=7K) is close to the magnetic transition temperature (T_N=5K), and the temperature vs magnetic-field phase diagram for the superconductivity and the magnetism is complicated involving the reentrant superconducting phase and antiferro-, ferri-, ferro-, and incommensurate magnetic phases. The purpose of the present project is to elucidate the interrelation between the superconductivity and the magnetism of HoNi_2B_2C through "lattice" by the ultrasonic measurement and by lattice deformation under uniaxial stresses. We carefully checked the sample dependence of the superconductivity of the single crystals prepared by a froating-zone infraned furnace, and found that multiple superconducting phases often coexist even in a single crystal. The Ultrasonic measurements revealed that the elastic constant C_<66>, relevant to the strain along [110], shows a large softening up to 60% with decreasing temperature from 80 K to T_N. We conclude that the strain couples with the ferromagnetic fluctuation of Ho magnetic moments within the c-plane. The elastic constant C_<33>, relevant to the strain along [001], shows a similar softening with decreasing temperature from 80 K to T_N although its change is smaller by two orders of magnitude than C_<66>. In addition, C_<33> shows stepwise softenings associated with the meta-magnetic transitions at 2 K. We conclude that the strain along [001] couples with the magnetic correlation of Ho magnetic moments between the c-planes. We deduced the dependence on the c-spacing of the exchange interactions between the c-planes. The magnetic measurements under uniaxial stress revealed that T_N increases remarkably by applying a stress along [110]. The rate is larger by 1 order of magnitude than that in the hydro-pressure. On the other hand, T_N dose not change by the stress along [001] within the present precision. We did not find any appreciable change of Tc by the stresses in all directions. In addition to the above investigation, we performed preliminary x-ray magnetic scattering experiment using synchrotron radiation in Spring-8. We confirmed the periodicity of the antiferro- and ferri- magnetic phases at 2 K by magnetic Bragg scattering., 14540331
2002 - 2003 - スピン状態と結合した格子揺らぎ
浅井 吉蔵; 近 桂一郎; 小林 義彦; 鈴木 勝
日本学術振興会, 科学研究費助成事業, 電気通信大学, 特定領域研究, 酸化物中八面体位置を占めるCo^<3+>(3d)^6の中間スピン状態(S=1,以後IS)は、低スピン(S=0,以後LS)、及び高スピン状態(S=2,以後HS)に比べてエネルギーが高く、通常実現することはないと考えられていたが、近年、LaCoO_3では100K近傍から半導体-金属転移の起こる500Kまでの広い温度範囲でIS状態が主たるスピン状態であるという提案がなされている。本研究では、(1)LS-ISスピン転移の動的性質とIS電子状態の軌道状態を明らかにし、(2)LaCoO_3中でIS状態が安定化される原因を探るために、(A)単一ドメインのLaCoO_3単結晶を用いて超音波測定を行い、(B)La_<1-x>Ca_xCoO_3の電子物性を調べた。 (A)では、赤外線集中加熱炉で育成した擬立方晶のLaCoO_3単結晶(4つの菱面晶結晶ドメインからなる)の[111]軸方向に圧力を加えて、1500℃から1300℃までstress annealingを行い、単一ドメインの単結晶を得ることに成功した。その試料で菱面晶系[111]軸方向の10MHz縦波超音波測定を行い、100K転移に伴う格子のソフト化を観測した。多ドメイン試料の擬立方晶[111]軸方向の実験結果に比べて、ソフト化の程度が大きく、スピン転移に伴う弾性以上が実際に菱面晶の対称性を持つことがわかった。 (B)では、Ca置換により、電気伝導が増大し、低温で強磁性が出現する(低濃度の場合はスピングラス)というSr置換と類似の物性を示すことが判明した。La^<3+>サイトへの2価イオン導入すると、格子体積には関係なくholeの導入によりIS状態が安定すること、Ca^<2+>導入の場合、Sr^<2+>の場合に比べてholeのmobilityが小さいこと、さらに両置換とも、臨界量以上の置換でFermi準位に状態密度の発生することが明らかになった。, 14038221
2002 - 2002 - 摩擦の物理
松川 宏; 鈴木 勝; 前田 京剛; 川端 和重; 那須野 悟; 三浦 浩治
日本学術振興会, 科学研究費助成事業, 大阪大学, 基盤研究(C), 内部に多くの自由度を持つ巨視的な系に外力を加えた場合、広義の摩擦を伴う複雑な運動を示すことがある。これに関した現象は固体界面の滑り摩擦から地震、電荷密度波、磁束格子など電子の巨視的凝縮相でのある種の秩序の運動など様々な分野の広いスケールに渡る。本研究では、研究代表者、分担者による周到な準備のもと、8月20〜22日に大阪大学豊中キャンパスにおいて、異なる分野、異なるスケールにわたる広義の摩擦現象に関する実験研究者と理論研究者が集まり、これらの現象を総合的に議論し分野間の交流を深める研究会"摩擦の物理"を開催した。80名ほどの参加者を得て、活発な議論が行われたた。これらの活動を通じて、"摩擦の物理"に関する研究グループが形成され、その後、数回の話しあいを経て、明確な将来の研究計画が立てられた。そして11月には科学研究費補助金特定領域研究"摩擦の物理"の申請へと結実した。この研究組織は総括班と7つの計画研究班からなり、以下のことを目的としている。 本研究は、現代物性科学・技術の成果をもとに新しい視点から、工学を含めた様々な分野における多様な系・レベルの摩擦機構の研究を有機的に繋げ、ミクロスケールからマクロスケールにわたる現象の階層性を正しく取り込み、摩擦の基礎的機構を統一的に解明する。摩擦の普遍性と個別性を明かにし、物理科学の新しい概念を生み出すとともに、その成果を踏まえた新たな摩擦制御技術の創生を目指す。, 13894010
2001 - 2001 - Slippage of Helium Films
SUZUKI Masaru
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, The University of Electro-Communications, Grant-in-Aid for Scientific Research (C), Friction is a common force, but is poorly understood from a microscopic point of view. Recently, experimental observations of atomic-scale friction were reported using newly developed techniques, e.g., the atomic force microscope(AFM), and the quartz-crystal microbalance(QCM). And the peculiar friction nature has been observed in an atomic scale. Recently, Krim and her colleagues measured the mechanical response of noble-gas films on a noble-metal substrate at 77K using the QCM technique. On the other hand, One may expect that since the attraction force of helium atom is so weak, physisorbed helium films slide easily on a substrate. Thus motivated, we investigated the slippage of both superfluid and nonsuperfluid helium films on a two-dimensional porous material, hectrite. In the present experiments, the ultrasonic technique was adopted for the measurements of the mechanical response of these films. When the film slips, a rapid increase in sound velocity and an attenuation peak are observed. We found that nonsuperfluid helium films slip from the oscillating substrate under certain conditions. Up to the coverage at which the fluid state appears at absolute zero, nonsuperfluid ^3He and ^4He films slipped from the oscillation at low temperatures, and this slippage was inhibited as the coverage increases further. In addition, it was found that from the temperature dependence of the slippage, a thermally activated process plays an important role in the frictional force of this system., 11640340
1999 - 2000 - Spin-State Transitions and Lattice Anomalies in oxides near the Mott transition boundary
ASAI Koichizo; KOBAYASHI Yoshihiko; SUZUKI Masaru; YAMADA Nobuyoshi; KOHN Kei-ichirou
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, The University of Electro-Communications, Grant-in-Aid for Scientific Research (C), The purpose of the present project is to investigate the spin-state transitions in oxides which locate near the metal-insulater (Mott) transition boundary. Not only the magnetic but also the electronic transport and the lattice properties have been investigated since the interactions among spin, charge, and the lattice play an important role in the "spin-state transition" in these oxides. The followings are clarified. 1. Nuclear magnetic relaxations of ィイD159ィエD1Co and μィイD1+ィエD1 in LaCoOィイD23ィエD2 and LaィイD20.9ィエD2SrィイD20.1ィエD2CoOィイD23ィエD2 The nuclear relaxation rates (TィイD21ィエD2ィイD1-1ィエD1 and TィイD22ィエD2ィイD1-1ィエD1) of ィイD159ィエD1Co measured by NMR for single crystalline LaCoOィイD23ィエD2 show a thermal-activation-type temperature dependence with an activation energy of 180 K. The relaxations are proved to be due to hyperfine interactions with interacting paramagnetic electrons in thermally populated magnetic Co ions. The activation energy agrees with the energy difference between the low-spin (LS ; S=0) and the intermediate-spin (IS ; S=1) states previously proposed in the "two-stage spin-transition" model. In contrast to ィイD159ィエD1Co, the relaxation rate of μィイD1+ィエD1 increases on lowering temperature below 100 K, meaning that the rate increases as the population of nonmagnetic LS Co ions increases. At present, we do not understand the mechanism. 2. Lattice anomalies associated with the spin-state transitions in LaCoOィイD23ィエD2 Elastic anomalous (lattice softenings) associated with the spin-state transitions are found near 100 K and 500 K by ultrasonic measurements. The results are interpreted based on the "two-stage spin-transition" model successfully. An increase of the absorption of the sound is observed around 100 K, which may suggest a short-range orbital order of IS state Co ions. 3. Magnetic and transport properties of LaCoィイD21-xィエD2NiィイD2xィエD2OィイD23ィエD2 (x < 0.1) Co atoms are in IS state down to the lowest temperature and their magnetic moments freeze into a spin-glass state. The resistivity below 400 K decreases by the substitution, although its temperature dependence remains to be an activation type. The Seebeck effect suggests that the carriers are positive polarons although the Hall coefficient is negative. The magnetic-electronic transition near 500 K survives in the substituted samples. 4. Resonance Photoemission Constant initial state (ClS) spectra as well as energy distribution curve (EDC) are measured for LaCoOィイD23ィエD2 and LaィイD20.9ィエD2SrィイD20.1ィエD2CoOィイD23ィエD2. The Co(3p->3d) resonance energy depends on the spin-state of Co ions. The temperature dependences of CIS and EDC are interpreted with the "two-stage spin-transition" model. 5. Crystal growth of LaSrCoOィイD24ィエD2 with the KィイD22ィエD2NiFィイD24ィエD2 structure Crystal growth of a single crystal of LaSrCoOィイD24ィエD2 using floating-zone lamp-image furnace is tested. However, Crystals sufficiently large for neutron scattering experiments have not been obtained., 10640336
1998 - 1999 - 低温域における^3He-^4He相分離界面の界面張力の精密測定
鈴木 勝
日本学術振興会, 科学研究費助成事業, 電気通信大学, 奨励研究(A), 液体ヘリウムの表面(界面)の研究は、他の液体とは異なり、表面特有の素励起の存在やバルクの素励起がどのように表面に影響を与えるか、という基本的な問題を提起して興味深い。本研究で取り上げる^3He-^4He相分離界面は、圧力を加えることで相分離した2相のバルクの性質を制御できるというユニークな特徴を持つ。 平成9年度は、まず圧力下で0.15Kまでの低温域の界面張力の測定を行い、界面張力の圧力依存性を明らかにした。解明張力は7気圧までの低圧域では圧力の増加とともに減少し、7気圧以上の高圧域では圧力にほぼ依存せず一定の値をしめす。界面張力と^3He準粒子の化学ポテンシャルの圧力依存性から、界面での^3He吸着量を求めることができる。解析の結果、7気圧までの低圧域では、界面張力の減少に対応し^3Heが界面から排除される負吸着が起こっており、その大きさは圧力の増加とともに減少するという知見が得られた。これは、定性的には^3Heと^4Heとの零点振動の大きさの違いにより説明されると考えている。これらの結果は論文として報告した。 平成10年度は、0.15K以下の低温域での界面張力の毛細管上昇法による測定システムの設計・作製を行った。はじめに。測定対象として液体^3Heの自由表面の表面張力を試みた。これまで液体^3Heの表面張力は150mK以下でほとんど温度に依存しないと報告されており、本研究でもほぼ同様な傾向が観測された。現在、界面張力の測定を行なっている。, 09740272
1997 - 1998 - レーザー場による光学応答の制御 団体系への拡張
白田 耕蔵; 桂川 眞幸; 鈴木 勝
日本学術振興会, 科学研究費助成事業, 電気通信大学, 重点領域研究, 平成8年度よりレーザー場による光学応答の制御の研究を高密度の凝縮系;個体系、へ拡張する試みを開始した。作業物質として固体水素を用いることにより、孤立原子・分子系の量子性と固体の高密度性を兼ね備えた状況が実現し、水素原子系で実証してきた量子干渉効果を用いる非線形光学の研究が従来の原理実証の限界を越えて発展できる見通しを得た。 強結合を達成するための要点は、2光子遷移のラビ周波数がその遷移の位相緩和速度を越えることであり、そのためには系の位相緩和速度が遅いことが本質的に重要である。本年度においては、固体水素の振動励起準位の位相緩和速度をポンプ・プローブ型のコヒーレント反ストークスラマン散乱法により測定した。2台のレーザーを用い、1台のレーザーで誘導ラマンを立ち上げ、コヒーレンスを発生させ、もう1方のレーザーとそのコヒーレンスのビ-ト光を反ストークス光として測定した。測定は、通常の位相整合条件を満たす反ストークス光(リング)及び強結合に基づく自動位相整合反ストークス光(スポット)について行った。リングとスポットによる緩和の振る舞いは大きく異なり、スポットによる信号は緩和速度(ラマンのスペクトル幅)にして3MHzFWHMであるのに対し、リングの信号は3MHzFWHMから70kHzFWHMへと大きな変化を示すものとなった。この解釈はいまだ確定していないが、弱結合から強結合へ相互作用が発展するに連れて、励起状態の分子数密度が上昇し、それにより励起状態間の相互作用により緩和速度も速くなることを反映しているものと思われる。今回の結果は固体水素の振動励起状態の緩和速度が固体としては異例に遅いことを示すものであり、固体水素の強結合非線形光学の可能性を示すものである。また、緩和速度が変化するという結果は強結合へのシステムの発展を定式化する上で極めて示唆的である。, 09210206
1997 - 1997 - Study on Spin-State Transitions in LaCoO_3
ASAI Kichizo; KOHN Kei-ichirou; KOBAYASHI Yoshihiko; SUZUKI Masaru; YAMADA Nobuyoshi
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, The University of Electro-Communications, Grant-in-Aid for Scientific Research (C), The purpose of the present project is to clarify the spin-states of Co ions and the nature of the transition between them in LaCoO_3. "Spin-state transition" in LaCoO_3 has been a controversial issue for a long time ; both of two broad magnetic anomalies, one near 100 K and a second near 500 K,have been interpreted by a common spin-state transition of Co trivalent ions from the low-spin to the high-spin state, and the interpretation is inconsistent as a whole. In this project, not only the magnetic but also the electronic transport and the lattice properties have been investigated since the interactions among spin, charge, and the lattice are crucial in the "Spin-state transition" in LaCoO_3 which locates near the Mott transiton boundary. The followings are clarified. 1. Two spin-state transitions in LaCoO_3 Anomalous lattice expansions and lattice softenings were observed near 100 K and 500 K by neutron-diffraction and ultrasonic measurements, respectively. These lattice anomalies and also the temperature dependence of the Co magnetic moments are successfully interpreted in a wide temperature range based on a model involving low-spin (LS ; S=O), intermediate-spin (IS ; S=1), and high-spin (HS ; S=2) states of Co atoms. The first spin transition, near 100K,is from LS to IS,and the second, near 500 K,is from IS to a mixed state of IS and HS.These studies reveal the volume dependence of the energy of each spin-state quantitatively, and also indicate the correlation between the large drop in resistivity and the collapse of the energy gap between IS and HS states in the 500 K transition. The proposed model successfully interprets the observed pressure dependence of the susceptibillity. We also point out that "the two spin-state transitions" is a unique feature of LaCoO_3 among RCoO_3 (R=rare earth element). 2. Magnetic and Transport properties of La_<1-X>Sr_XCoO_3 and LaCo_<1-X>Ni_XO_3 (X<0.1) In both systems, Co atoms are in IS state down to the lowest temperature and their magnetic moments freeze into a spin-glass state. The resistivity below 400 K decreases by the substitution, although its temperature dependence remains to be the activation type. The Seebeck effect suggests that the carriers dominating the transport are positive polarons in both systems. However, the Hall coefficient is positive in La_<1-X>Sr_XCoO_3 but negative in LaCo_<1-X>Ni_XO_3. The magnetic-electronic transition near 500 K survives in the substituted samples. This finding is consistent with the model described above for undoped LaCoO_3. 3.Phtoemission, NMR,and muSR studies of LaCoO_3 The temperature dependences of the photoemission spectra and the nuclear relaxation rates of ^<59>Co measured by NMR are interpreted consistently with the model described above. We found an increase of the relaxation rates of mu^+ on lowering temperature below 100 K.A more investigation is neccessary to understand the spin-state transition which mu^+ sees in LaCoO_3., 08640449
1996 - 1997 - 超流動転移点近傍における表面張力の異常に関する^3He不純物効果
鈴木 勝
日本学術振興会, 科学研究費助成事業, 電気通信大学, 奨励研究(A), 液体^4Heの超流動転移点近傍での表面張力の振る舞いは、超流動転移というバルクの性質の変化が表面にどのような影響を与えるか、という基本的な問題を提起して興味深い。さらに、液相一気相臨界点を異なり、転移点の高温測低温測ともに表面が存在するというユニークな特徴を持つ。本研究では、液体^4Heに不純物として^3Heを加え、転移点近傍の表面張力が定量的にどのように変化するかを測定することにより超流動転移と表面張力の関係を明らかにする。具体的には、1)表面張力の異常はBose凝縮体(または超流動密度)に結びつけられるかどうか。2)MikheevとFisherにより指摘された2mKの異常の不純物効果とそのメカニズムはなにか、について新しい知見を得ることを目的とする。 本研究では、実験の準備としてクライオスタットの改良および測定系の安定度を向上させる改良を行うと同時に、これまでに、予備的な実験として次のことを行った。 1)液体^4Heの表面張力の絶対値の測定:最近、フランスのグループは、薄膜の第3音波の測定より表面張力の絶対値がこれまでの値より6%ほど大きいと報告した。本実験では、試料液体の厚さの変化による表面張力の絶対値の系統誤差を評価したが系統誤差は見られず、これまで報告された絶対値に一致する結果を得た。2)小量の^3Heを不純物として混合したときの表面張力の測定:液体^4He試料に0.14%の^3He不純物を混合し、λ点近傍の表面張力の異常を測定した。予備的な測定があるが、純粋な^4Heとほぼ同様な振る舞いをすることが見いだされた。つまり、上記の2mKの異常は^3He不純物の濃度には依存しない。これは、この異常のメカニズムの解明に手がかりを与えるものと期待される。, 08740269
1996 - 1996 - レーザー場による光学応答の制御:固体系への拡張
白田 耕藏; 鈴木 勝
日本学術振興会, 科学研究費助成事業, 電気通信大学, 重点領域研究, 本研究の目的は、レーザー場による光学応答の制御の研究を気体原子系から高密度の固体系に拡張し、研究の新しいフェーズへの端緒を切り開くことを目指すものである。対象とする物質は量子固体として知られる固体水素である。 本計画は実験面で大きく二つに分けることができる。一つは固体水素単結晶の作製であり、他方は非線形光学実験である。前者については、加圧液相成長法を開発し良質の固体水素単結晶を製作する見通しを得た。本方法で得た固体水素の単結晶は4Kでもクラック無しに維持できる良質のものである。この結果は、「4Kで光学的に良質な固体水素単結晶は液相成長では生成不可能である」という常識を覆すものである。また、ここで得た結晶の光学的均一性は現在までベストの方法とされてきた気相成長法によるものを上回るものである。本法を更に発展させサブミクロンの薄膜からバルク単結晶まで種々の形態の良質の固体水素を準備できるよう研究を進展させつつある。 後者の非線形光学実験は誘導ラマン散乱の実験に集中した。その結果は極めて驚くべきものである。反ストークス光の発生過程についての位相整合条件は、非線形光学の誕生以来信じられてきたように「物質系の屈折率分散によって決定される」ものではなく、レーザー場と物質系が全体系としての固有状態を自己組織的に発展させることにより任意性をもって成り立ち得ることが実験的に示された。現在さらに、この現象を定量的に明らかにするため、バルク単結晶を用いたcw半導体レーザーによるストークス光の注入同期、薄膜サンプルと励起光・ストークス光として独立のレーザーを用いる実験を進展させつつある。今回示した結果は固体水素が本質的に持つ非線形光学媒質・レーザー媒質としての極めて優れたポテンシャルを証明するものであり、関連分野の世界で大きな注目を集めておりすでに4種の国際会議から招待講演の依頼を受けている。, 08224207
1996 - 1996 - Development of High Resolution Acoustic Microscope Using Superfluid ^4He
OKUDA Yuichi; KARAKI Koichi; SUZUKI Masaru
Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Tokyo Institute of Technology, Faculty of Science, Grant-in-Aid for Developmental Scientific Research (B)., An acoustic microscope has been developed which makes use of pressurized superfluid helium as an acoustic coupling medium. By pressurizing superfluid ^4He, the efficiency of antireflection coating increases because of the increase of the acoustic impedance of the liquid ^4He, and the power level of saturation caused by nonlinearity of the superfluid ^4He is raised. A good signal-to-noise ratio of imaging is thus obtained even at 1.9K, relatively high temperature. And for the frequency 850MHz, under 13atm at 0.3K, the resolution of about 0.25mum was obtained by nonlinear effects. It exceeds the diffraction limit. We have measured the power dependence of the propagation of coherent focused acoustic pulse in superfluid ^4He underseveral pressures. At the low pressure region where the dispersion relation is anomalous, the simple saturation and the weak depletion were observed. On the other hand, at the higher pressure region where the dispersion relation becomes normal, the completely new nonlinear phenomena have been observed. That is, when the input power increases, the received power increases monotonously. Saturates and rapidly depletes. As the input power is increased further, the received power increases and depletes again. To explain this phenomenon, we propose a mixed nonlinear acoustic process, which consists of two different nonlinear processes. One is the 4-phonon decay process and the self-amplification of its decay products, and the other is the harmonic generation and its recovery to fundamental wave by the property of the focused beam. To verify this model. We have observed the second harmonics and shown that the second harmonics is generated in superfluid ^4He. Moreover, we have measured the resolution of acoustic microscope and observed its improvement beyond the diffraction limit at nonlinear region. Therefore, it shows that the fundamental wave recovered from harmonics exists in superfluid ^4He, too. This model for the nonlinear phenomena in pressurized superfluid ^4He is thus verified and the essential part of the phenomena is understood., 01840008
1989 - 1990
