Kubota Laboratory

Publication List

2009


Possible Vortex Fluid to Supersolid Transition in Solid 4He below 75 mK
Nobutaka Shimizu, Yoshinori Yasuta, and Minoru Kubota
http://arxiv.org/pdf/0903.1326/ 150 (2009) 032052-1-4.

Vortex Dynamics in hcp Solid 4He
Minoru Kubota, Nobutaka Shimizu, Yoshinori Yasuta, Patryk Gumann, Sergey Nemirovskii
Journal of Low Temperature Physics

hcp固体ヘリウム4中の量子渦状態と量子渦糸ダイナミクス
清水 宣伯 東京大学大学院新領域創成科学研究科物質系専攻 2009年

1本の回転細円筒容器中の超流動ヘリウム3 Superfluid 3He in a Rotating Small Cylinder
泉名 健 東京大学理学系研究科物理学専攻 2009年

Coherent Precession of Magnetization in Superfluid 3He A-Phase in Aerogel
A. Matsubara, T. Sato, T. Kunimatsu, K. Izumina, M. Kubota, T. Mizusaki and Y. M. Bunkov
Journal of Physics: Conference Series 150 (2009) 032052-1-4.

Effect of the cooling speed through Tc on the formation of textures in superfluid 3He-A
K. Izumina, R. Ishiguro, M. Kubota, Y. Sasaki, T. Takagi and O. Ishikawa
Journal of Physics: Conference Series 150 (2009) 032034-1-4.

Low temperature magnetic properties of unconventional superconductor PrOs4Sb12
Y. Karaki, M. Kubota, H. Ishimoto, H. Sugawara, D. Kikuchi and H. Sato
Journal of Physics: Conference Series 150 (2009) 052094 -1-3.

Groth of a Single Vortex Line of 3He-A in a Narrow Cylinder under Rotation
R. Ishiguro, K. Izumina, Y. Sasaki, M. Kubota and O. Ishikawa
Journal of Physics: Conference Series 150 (2009) 032033-1-4.

Possible Vortex Fluid to Supersolid Transition in Solid 4He below about 75 mK
N. Shimizu, Y. Yasuta and M. Kubota
arXiv :0903.1326 (2009) 1-4.

2008


ac Vortex-Dependent Torsional Oscillation Response and Onset Temperature T0 in Solid 4He
A. Penzev, Y. Yasuta, and M. Kubota
Phys. Rev. Lett., 101, 065301 (2008)

T. Sato, T. Kunimatsu, K. Izumina, A. Matsubara, M. Kubota, T. Mizusaki, and Yu. M. Bunkov
Coherent Precession of Magnetization in the Superfluid 3He A-Phase
Phys. Rev. Lett., 101, 055301 (2008)

M. Yamashita, K. Izumina, A. Matsubara, Y. Sasaki, O. Ishikawa, T. Takagi, M. Kubota, and T. Mizusaki
Spin Wave and Vortex Excitations of Superfluid 3He-A in Parallel-Plate Geometry
Phys. Rev. Lett., 101, 025302 (2008)

2007

T. Kunimatsu, T. Sato, K. Izumina, A. Matsubara, Y. Sasaki, M. Kubota, O. Ishikawa, T. Mizusaki, and Yu. M. Bunkov
The Orientation Effect on Superfluid 3He in Anisotropic Aerogel
Pis'ma v ZhETF 86 p.244-248 (2007)

T. Kunimatsu, T. Sato, K. Izumina, A. Matsubara, Y. Sasaki, M. Kubota, O. Ishikawa, T. Mizusaki, and Yu. M. Bunkov
NMR of superfluid 3He in anisotropic aerogel
cond-mat/0612007

T. Kunimatsu, K. Izumina, T. Sato, A. Matsubara, Y. Sasaki, O. Ishikawa, M. Kubota, Yu. M. Bunkov, and T. Mizusaki
Textures of Superfluid 3He A- and B-like Phases in Aerogel under Rotation
J. Low Temp. Phys. 148 p.591-596 (2007)

A. Penzev, Y. Yasuta, and M. Kubota
Annealing effect for supersolid fraction in He-4
J. Low Temp. Phys. 148 p.677-681 (2007)

2006

M. Yamashita, K. Izumina, A. Matsubara, Y. Sasaki, O. Ishikawa, T. Takagi, M. Kubota, and T. Mizusaki
Rotating Superfluid 3He-A in Parallel-Plate Geometry
AIP Conference Proceedings, Vol. 850, pp. 185-186 (2006)

M. Kubota, Y. Kataoka, M. Yamashita, K. Izumina, and O. Ishikawa
Vortex State of 3He-A Studied by NMR Linewidth
AIP Conference Proceedings, Vol. 850, pp. 183-184 (2006)

2005

M. Yamashita, A. Matsubara, R. Ishiguro, Y. Sasaki, Y. Kataoka, M. Kubota, O. Ishikawa, Yu.M. Bunkov, T. Ohmi, T. Takagi, and T. Mizusaki
Pinning of Texture and Vortices of the Rotating B-like Phase of Superfluid 3He Confined in a 98% Aerogel
Phys. Rev. Lett., 94, 75301 (2005)

M. Fukuda, M.K. Zalalutdinov, V. Kovacik, T. Minoguchi, T. Obata, M. Kubota, and E.B. Sonin
Phase diagram of hydrogen in palladium
Phys. Rev. B, 71, 212502 (2005)

T. Obata, T. Tanuma, T. Igarashi, and M. Kubota
Torsional Oscillator measurements of multiply connected monolayer He-4 films under high speed rotation up to 4.0 rev./s
J. Low Temp. Phys. 138 p.929-934 (2005)

H. Araki, S. Harada, and M. Kubota
A search for quantum phenomena of hydrogen in palladium at low temperatures; specific heat and torsional oscillator experiments
Journal of Physics and Chemistry of Solids 66 pp. 1490-1492 (2005)

2004

Vortex Formation and Annihilation in Three Textures of Rotating Superfluid 3He-A
Phys. Rev. Lett., 93, 125301 (2004)

H. Araki, M. Nakamura, S. Harada, T. Obata, N. Mikhin, V. Syvokon, and M. Kubota
Phase diagram of hydrogen in palladium
J. Low Temp. Phys. 134 p.1145-1151 (2004)

T. Obata, J.D. Reppy, and M. Kubota
Porosity dependence of tortuosity factor in a multiply connected substrate
J. Low Temp. Phys. 134 p.547-552 (2004)

T. Obata, M. Fukuda, N. Mikhin, J. D. Reppy, and M. Kubota
Torsional oscillator study of thin He films under high speed rotation
J. Low Temp. Phys. 134 p.559-565 (2004)

M. Yamashita, A. Matsubara, R. Ishiguro, Y. Sasaki, O. Ishikawa, M. Kubota, Y.M. Bunkov, and T. Mizusaki
Rotating Superfluid 3He in Aerogel
J. Low Temp. Phys. 134 p.749-755 (2004)

2003


Y. Karaki, R. Masutomi, M. Kubota, H. Ishimoto, T. Asano, Y. Ajiro
Magnetic ordering of quasi-1D S = 1/2 Heisenberg antiferromagnet Cu benzoate at sub-mK temperatures
Physica B 329-333 p.1002-1003 (2003)

Nikolay P. Mikhin, Vitaly E. Syvokon, Toshiaki Obata, Minoru Kubota
Torsion oscillator study of three-dimensional superfuidity of 4He thin films in 10 μm porous glass
Physica B 329-333 p.272-273 (2003)

Minoru Kubota, Toshiaki Obata, Ryousuke Ishiguro, Minoru Yamashita, Takeshi Igarashi, Emi Hayata, Osamu Ishikawa, Yutaka Sasaki, Nikolay Mikhin, Muneyuki Fukuda, Vladimir Kovacik, Takao Mizusaki
Superfluidity and quantized vortex studies under rotation up to 4 Hz at mK and 1 Hz at sub-mK temperatures
Physica B 329-333 p.1577-1581 (2003)

R. Ishiguroa, M. Yamashita, T. Igarashi, E. Hayata, O. Ishikawa, Y. Sasaki, K. Fukuda, M. Kubota, H. Ishimoto, T. Mizusaki, T. Ohmi, T. Takagi, R.E. Packard
Vortex nucleation and texture of rotating 3He-A in cylindrical cells with R〜10ξD
Physica B 329-333 p.66-67 (2003)

2002

Toshiaki Obata and Minoru Kubota
Calculation of the phase field of a vortex pair on the surface of a multiply connected substrate
Phys. Rev. B.66,Rapid Comm. 140506 Oct.1 (2002)

V. E. Syvokon, and M. Kubota
Study of a helium film in 10 μm porous glass by torsional oscillator in free decay mode
J. Low Temp. Phys. 123 p.563-568 (2002)

2000

V. E. Syvokon, K. Ooyama, and M. Kubota
Superfluid Helium Films in 10 μm Porous Glass; Torsional Oscillator Study at High AC Velocities
Physica B 250-252 p.113-114 (2000)

Yoshitomo Karaki, Kenta Yotsui, Minoru Kubota, and Hidehiko Ishimoto
Hyperfine enhanced nuclear ferromagnetic ordering in PrPt5
Physica B 284-288 p.1690-1691 (2000)

Yoshitomo Karaki, Minoru Kubota,Hidehiko Ishimoto, and Yoshichika Onuki
Anomalous temperature dependence of resistance in hyperfine enhanced nuclear antiferromagnet PrIn3 at mK-temperatures
Physica B 284-288 p.1690-1691 (2000)

V. E. Syvokon, K. Ooyama, M. Fukuda, T. Obata, T. Igarashi, and M. Kubota
Superfluid Helium Films in 10 mm Porous Glass; Torsional Oscillator Study at High AC Velocities
Physica B 250-252 p.113-114 (2000)

Muneyuki Fukuda, Toshio Obata, Maxim K. Zalalutdinov. Vladimir Kovacik, and Minoru Kubota
Rotationally induced dissipation peak and dynamics of 3D vortex lines
Physica B 250-252 p.117-118 (2000)

Hideaki Araki, Shuji Harada, Muneyuki Fukuda, Vitaliy Syvokon and Minoru Kubota
Specific heat measurements of PdHx over wide temperature range
Physica B 250-252 p.1255-1256 (2000)

Yukio Mor i i , Yoshihiro Koike, Takeshi Igarashi, Minoru Kubota, Yu Hiresaki and Koji Tanida
A Liquid-He-free Dilution Refrigerator for Neutron Scattering
Physica B 250-252 (2000)

1999

Y. Karaki, M.Kubota, and H.Ishimoto
Nuclear antiferromagnetic ordering of the Van Vleck paramagnet PrIn3
Phys. Rev. B Vol.60 No.11 p.6246-6249 (1999)

Y. Koike, Y. Morii, T. Igarashi, M. Kubota, Y. Hiresaki, K. Tanida
A dilution refrigerator using the pulse tube and GM hybrid cryocooler for neutron scattering
Cryogenics Vol.39 p.579-583 (1999)

1998

Minoru Kubota, Kenji Kimoto, Tatsuya Yano, Muneyuki Fukuda, Maxim Zalalutdinov, Kazunari Ooyama and Vladimir Kovacik
Thermal Conductivity Study of Thin Superfluid Films Formed in Porous Glass with 1 Micrometer Pore Diameter
J. Low Temp. Phys. 113 p.429-434 (1998).

M. Fukuda, M.K. Zalalutdinov, V. Kovacik, T. Igartashi, T. Obata, K. Ooyama, and M. Kubota
The Superfluid Transition and Vortex Dynamics in Submonolayer Superfluid 4He Films in Porous Glass under Rotation
J. Low Temp. Phys. 113 p.417-422 (1998)

M. Fukuda, K. Ooyama, T. Obata, V. Kovacik, and M. Kubota
Torsional Oscillator Experiments with High Stability and Reproducibility
J. Low Temp. Phys. 113 p.423-428 (1998)

T.Kawae, M.Kubota, Y.Ishimoto, S.Miyawaki, O.Ishikawa, T.Hata, and T.Kodama
A-B Transition of Superfluid 3He with a Film Geometry
J. Low Temp. Phys. p.917-935 (1998)

1990

K. Shirahama, M. Kubota, S. Ogawa, N. Wada and T. Watanabe
Size-dependent Kosterlitz-Thouless superfluid transition in thin 4He films adsorbed on porous glasses
Phys. Rev. Lett 64 p1541-1544 (1990)

Conference Proceedings

Muneyuki Fukuda, Vladimir Kovacik, Takeshi Igarashi, and Minoru Kubota
JT precooled Dilution Refrigerator Performance and Highly Sensitive Torsional Oscillator Experiments under Continuous Rotation up to 60 rpm
Proc. intern. cryogenic engineering conference ICEC17,217-220. (1998)

Minoru Kubota, Takeshi Igarashi, Muneyuki Fukuda, Vladimir Kovacik and Yu Hiresaki
Development of JT precooled Dilution Refrigerators and Refrigerant-free Dilution Refrigerators
Proc. intern. cryogenic engineering conference ICEC17,161-164. (1998)
Y.Koike, Y.Morii, T.Igarashi, M.Kubota, Y.Hiresaski, and K.Tanida
Development of Liquid He free Dilution Refrigerator for the Neutron Scattering
Proc. intern. cryogenic engineering conference ICEC17, 263-266. (1998)

Kubota Lab., The Institute for Solid State Physics, University of Tokyo
Kashiwanoha, 5-1-5, Kashiwa, Chiba, 277-8581, Japan