2017

First Observation of Heavy Fermion Behavior in Ce-based Icosahedral Approximant
J. Phys. Soc. Jpn., 86, 093702 (2017).

K. Imura, K. Nobe, K. Deguchi, M Matsunami, H. Miyazaki, A. Yasui, E. Ikenaga, and N. K. Sato

 

Quantum critical behavior in magnetic quasicrystals and approximant Crystals
J. Phys: Conf. Series 868 (2017) 012005
N. K. Sato, S. Matsukawa, K. Nobe, K. Imura, K. Deguchi, and T. Ishimasa

 

Observation of Systematic Variation in Yb Ion Valence as a Function of Interatomic Spacing in Icosahedral Approximant Crystals
J. Phys. Soc. Jpn. 86, 043702 (2017)
Minami Hayashi, Kazuhiko Deguchi, Shuya Matsukawa, Keiichiro Imura, and Noriaki K. Sato

Anticorrelation between polar lattice instability and superconductivity in the Weyl semimetal candidate MoTe2
Phys. Rev. B, 95, 100501(R) (2017)
H. Takahashi, T. Akiba, K. Imura, T. Shiino, K. Deguchi, N. K. Sato, H. Sakai, M. S. Bahramy, and S. Ishiwata


2016

Pressure-driven Quantum Criticality and T/H scaling in the Au-Al-Yb Approximant

J. Phys. Soc. Jpn. 85 (2016) 063706

S. Matsukawa, K. Deguchi, K. Imura, T. Ishimasa, and N. K. Sato


2015

Superconductivity of Au–Ge–Yb Approximants with Tsai-Type Clusters
J. Phys. Soc. Jpn. 84, 023705 (2015) Editor’s choice
http://dx.doi.org/10.7566/JPSJ.84.023705

K. Deguchi, M. Nakayama, S. Matsukawa, K. Imura, K. Tanaka, T. Ishimasa, and N. K. Sato

 

Crystal Structure of Superconducting 1/1 Cubic Au–Ge–Yb Approximantwith Tsai-Type Cluster
J. Phys. Soc. Jpn. 84 (2015) 015002.
DOI: 10.7566/JPSJ.84.015002
K. Deguchi, M. Nakayama, S. Matsukawa, K. Imura, K. Tanaka, T. Ishimasa, and N. K. Sato

 

Origin of the black-golden transition in Sm1−xYxS

J. Phys.: Conf. Series 592 (2015) 012028.

Keiichiro Imura, Mai Saito, Masaki Kaneko, Takahiro Ito, Tetsuya Hajiri, Masaharu Matsunami, Shin-ichi Kimura, Kazuhiko Deguchi, Hiroyuki S. Suzuki, Noriaki K. Sato


Localized Electron Magnetism in the Icosahedral Au–Al–Tm Quasicrystal and Crystalline Approximant
J. Phys. Soc. Jpn. 84, 024721-1-6 (2015)

M. Nakayama, K. Tanaka, S. Matsukawa, K. Deguchi, K. Imura, T. Ishimasa, and N. K. Sato

 

ウラン系強磁性超伝導体における強磁性揺らぎが誘起するスピン3重項超伝導

固体物理、Vol.50, 23 (2015)

石田憲二、服部泰祐、佐藤憲昭、出口和彦、多田靖啓、藤本聡

 

Tsai型クラスターを持つAu-Ge-Yb近似結晶の超伝導-準結晶と結晶をつなぐ物質で発現した超伝導-

固体物理、Vol.50, 25 (2015)

出口和彦、佐藤憲昭、石政勉


2014

Thermodynamic Study of Nodal Structure and Multiband Superconductivity of KFe2As2
J. Phys. Soc. Jpn. 83 (2014) 013704-1-4.

S. KITTAKA, Y. AOKI, N. KASE, T. SAKAKIBARA, T. SAITO, H. FUKAZAWA, Y. KOHORI, K. KIHOU, C. LEE, A. IYO, H. EISAKI, K. DEGUCHI, N. K. SATO, Y. TSUTSUMI, and K. MACHIDA

 

Valence Change Driven by Constituent Element Substitution in the Mixed-Valence Quasicrystal and Approximant Au-Al-Yb
J. Phys. Soc. Jpn., 83 (2014) 034705
DOI: 10.7566/JPSJ.83.034705
Shuya Matsukawa, Katsumasa Tanaka, Mika Nakayama, Kazuhiko, Deguchi, Keiichiro Imura, Hiroyuki Takakura, Shiro Kashimoto, Tsutomu Ishimasa, and Noriaki K. Sato

 

Electrical oscillation in SmS induced by a constant external voltage
Phys. Rev. B, 89 (2014) 195103
H. Takahashi, R. Okazaki, H. Taniguchi, I. Terasaki, M. Saito, K. Imura, K. Deguchi, N. K. Sato


Spin-Triplet Superconductivity Induced by Longitudinal Ferromagnetic Fluctuations in UCoGe Probed by 59Co NMR Measurement
J. Phys. Soc. Jpn. 83 (2014) 061012. (8 Pages)

Taisuke Hattori, Yoshihiko Ihara, Kosuke Karube, Daisuke Sugimoto, Kenji Ishida, Kazuhiko Deguchi, Noriaki K. Sato, and Tomoo Yamamura,

 

Angle-Resolved Photoemission Study on Insulator-to-Metal Transition of Sm1-xYxS
JPS Conf. Prof. 3 (2014) 011080
M. Kaneko, M. Saito, T. Ito, K. Imura, T. Hajiri, M. Matsunami, S. Kimura, H. S. Suzuki, N. K. Sato

Transport properties of the Au-Al-Yb Quasicrystal and Approximant under Hydrostatic pressure
Acta Physica Polonoca A, 126 (2014) 527
S. Matsukawa, K. Tanaka, M. Nakayama, S. Kunikata, K. Deguchi, K. Imura, T. Ishimasa and N.K. Sato


Tsai-Type Quasicrystal and Its Approximant in Au-Al-Tm Alloys
ACTA PHYSICA POLONICA A, vol.126 (2014) 603-607.
DOI: 10.12693/APhysPolA.126.603

K. Tanaka, Y. Tanaka, T. Ishimasa, M. Nakayama, S. Matsukawa, K. Deguchi, and N.K. Sato


Insulator-to-metal transition of Sm1-xYxS
K. Imura, M. Saito, M. Matsunami, H. S. Suzuki, S. Kimura and N. K. Sato
UVSOR Activity Report 2013

Macroscopic Randomness of Carrier Density in Sm0.83Y0.17S
S. Kimura, K. Imura and N. K. Sato
UVSOR Activity Report 2013


2013

Phase diagram of the itinerant-electron ferromagnet ZrZn2
Phys. Status Solidi B 250, No. 3 (2013) 654–656.
DOI 10.1002/pssb.201200869

N. Kabeya, H. Maekawa, K. Deguchi, N. Kimura, H. Aoki, and N. K. Sato

 

Superconducting niobium nitride thin films by reactive pulsed laser deposition
Thin Solid Films, 545 (2013) 601-607.
Y. Ufuktepe, A. H. Farha, S-I. Kimura, T. Hajiri, K. Imura, M. A. Mamun, F. Karadag, A. A. Elmustafa, H. E. Elsayed-Ali

Angle-resoved photoemission spectroscopy on mixed-valence Sm1-xYxS
J. Korean Phys. Soc., 62 (2013) 2028.
DOI:10.3938/jkps.62.2028
K. Imura, T. Hajiri, M. Matsunami, S. Kimura, M. Kaneko, Y. Nishi, N. K. Sato, H. S. Suzuki

Unified understanding of the valence transition in the rare-earth monochalcogenides under pressure
arXiv:1301.2029
Phys. Rev. B 87 (2013) 115107.
DOI: 10.1103/PhysRevB.87.115107
I. Jarrige, H. Yamaoka, J. -P. Rueff, J. -F. Lin, M. Taguchi, N. Hiraoka, H. Ishii, K. D. Tsuei, K. Imura, T. Matsumura, A. Ociai, A. Kotani

New method for determining the valence of lanthanide compounds: Lg4 emission spectroscopy
J. Anal. At. Spectrom., 2013, 28 (3), 373-378
DOI: 10.1039/c2ja30232b
H. Hayashi, N. Kanai, N. Kawamura, M. Mizumaki, K. Imura, N. K. Sato, H. S. Suzuki, F. Iga

 

Spin Susceptibility in the Superconducting state of Ferromagnetic Superconductor UCoGe
Phys. Rev. B 88 (2013) 085127.

T. Hattori, K. Karube, Y. Ihara, K. Ishida, K. Deguchi, N. K. Sato, T. Yamamura


Spin-Triplet Superconductivity Induced by Longitudinal Ferromagnetic Fluctuations in UCoGe:Theoretical Aspect
Journal of Physics: Conference Series 449 (2013) 012029.
DOI: 10.1088/1742-6596/449/1/012029

Y. Tada, S. Fujimoto, N. Kawakami, T. Hattori, Y. Ihara, K. Ishida, K. Deguchi, N. K. Sato, and I. Satoh

Spin-Density-Wave Type Ordering on LaCoGe Revealed by 59Co and 139La NMR Measurements
J. Phys. Soc. Jpn. 82, 083712-1-4 (2013).

K. Karube, T. Hattori, K. Ishida, N. Tamura, K. Deguchi, and N. K. Sato

磁性準結晶における量子臨界現象ー重い電子系と準結晶の境界領域に潜む新しい物理を探るー
固体物理、Vol.48, No. 7, 55 (2013).

佐藤憲昭、出口和彦、石政勉


2012

Non-Fermi Liquid State Bounded by a Possible Electronic Topological Transition in ZrZn2

J. Phys. Soc. Jpn. 81 (2012) 073706.
DOI: 10.1143/JPSJ.81.073706

N. KABEYA, H. MAEKAWA, K. DEGUCHI, N. KIMURA1,H. AOKI, and N. K. SATO,

Quantum critical state in a magnetic quasicrystal
Nature Materials DOI: 10.1038/NMAT3432
Nature Materials, Vol. 11, No.12, (2012) 1013-1016.
K. Deguchi, S. Matsukawa, N.K. Sato, T. Hattori, K. Ishida, H. Takakura and T. Ishimasa

Thermoelectric power investigation of SmS under pressure

J. Phys.: Conf. Series, 391, (2012) 012027-1-4.
doi:10.1088/1742-6596/391/1/012027

S. Kanematsu, K. Imura, H. S. Suzuki, K. Deguchi, N. K. Sato

 

Superconductivity Induced by Longitudinal Ferromagnetic Fluctuations in UCoGe
Phys. Rev. Lett. 108 (2012) 066403.
DOI: 10.1103/PhysRevLett.108.066403  

T. Hattori, Y. Ihara, Y. Nakai, K. Ishida, Y. Tada, S. Fujimoto, N. Kawakami, E. Osaki, K. Deguchi, N. K. Sato, and I. Satoh


Fabrication of single crystalline EuO thin films with SrO buffer layer on SrTiO3 substrate
J. Phys.: Conf. Series, 391, (2012), 012047
H. Miyazaki, H. Momiyama, T. Hajiri, T. Ito, K. Imura, M. Matsunami, S. Kimura

Design of a dedicated beamline for THz coherent syncrotron radiation at UVSOR-III
J. Phys.: Conf. Series, 359, (2012), 012009
Shin-ichi Kimura, Eiken Nakamura, Keiichiro Imura, Masahito Hosaka, Toshiharu Takahashi, Masahiro Katoh

Field reference technique for ac magnetic susceptibility measurements under pressure
Journal of Physics: Conference Series 391 (2012) 012094-1-3.

doi:10.1088/1742-6596/391/1/012094
N. Kabeya, K. Deguchi and N. K. Sato


2011

Discontinuous Transition from a Real Bound State to Virtual Bound State in a Mixed-Valence State of SmS
J. Phys. Soc. Jpn., Vol.80, No.11, (2011) 113704.
DOI:10.1143/JPSJ.80.113704

Keiichiro Imura, Shinkichi Kanematsu, Kazuyuki Matsubayashi, Hiroyuki S Suzuki, Kazuhiko Deguchi, Noriaki K Sato

 

Interplay of the superconductivity and magnetism in Eu0.7Na0.3Fe2As1.4P0.6
Supercond. Sci. Technol. 24 (2011) 085017.
DOI: 10.1088/0953-2048/24/8/085017

Y R Jang, J B Hong, B H Min, M A Jung, Y Y Song, H J Oh, K J Lee, M H Jung, S Kanematsu, K Imura, K Deguchi, N K Sato and Y S Kwon

 

59Co-Nuclear Quadrupole Resonance and Nuclear Magnetic Resonance Studies on YCoGe-Comparison between YCoGe and UCoGe

J. Phys. Soc. Jpn.  80   No.6  (2011) 064711.
DOI: 10.1143/JPSJ.80.064711

K. Karube, T. Hattori, Y. Ihara, Y. Nakai, K. Ishida, N. Tamura, K. Deguchi, N.K. Sato, H. Harima


Correlation of Ferromagnetism and Superconductivity in UCoGe
AIP Conf. Proc. 1347 (2011) 132-137.
International Conference on Magnetic Materials (ICMM-2010) Kolkata, India, Oct 2010
N. K. Sato, K. Deguchi, K. Imura, N. Kabeya, N. Tamura, K. Yamamoto

 

Thermoelectric Power Investigation on SmS

J. Phys. Soc. Jpn 80 (2011) SA077.
DOI: 10.1143/JPSJS.80SA.SA077
Keiichiro IMURA, Shinkichi KANEMATSU, Kazuhiko DEGUCHI, Hiroyuki, S.SUZUKI, Kazuyuki MATSUBAYASHI, Noriaki K. SATO

Thermal Expansion Measurements Using the Strain Gauge Technique with Kelvin Double Bridge
J. Phys. Soc. Jpn. 80 (2011) SA108.
DOI: 10.1143/JPSJS.80SA.SA108
Noriyuki Kabeya, Keiichiro Imura, Kazuhiko Deguchi, Noriaki K. Sato

Construction of a Magnetometer Using a Piezo Actuator
J. Phys. Soc. Jpn. 80 (2011) SA098.
DOI: 10.1143/JPSJS.80SA.SA098

Deguchi Kazuhiko, Tsuyoshi Furukawa, Seiko Ban, Keiichiro Imura, Kazuyui Matsubayashi, Noriaki K. Sato


磁石にくっつく超伝導体ー強磁性と超伝導の微視的な共存
パリティ、26, No.04 (2011) 49-54.
石田憲二、佐藤憲昭


超伝導になる磁石の物理学
日本磁気歯科学会雑誌 第20巻 第1号(H23年12月)1-6.
佐藤憲昭


2010

Absence of Meissner State and Robust Ferromagnetism in the Superconducting State of UCoGe:Possible Evidence of Spontaneous Vortex State

J. Phys. Soc. Jpn. 79, No.8 (2010) 083708

DOI: 10.1143/JPSJ.79.083708

K. Deguchi, E. Osaki, S. Ban, N. Tamura, Y. Simura, T. Sakakibara, I. Satoh, and N. K. Sato

 

Anisotropic Magnetic Fluctuations in the Ferromagnetic Superconductor UCoGe Studied by Direction-Dependent 59Co NMR Measurements

Phys. Rev. Lett. 105 (2010) 206403.

DOI: 10.1103/PhysRevLett.105.206403

Y. Ihara, T. Hattori, K. Ishida, Y. Nakai, E. Osaki, K. Deguchi, N. K. Sato, and I. Satoh

 

Electrical resistivity and thermal expansion investigation of golden SmS under pressure
Journal of Physics: Conference Series 200 (2010) 012067
Keiichiro Imura, Kazuyuki Matsubayashi, Hiroyuki S Suzuki, Kazuhiko Deguchi, Noriaki K Sato


Tricritical point of a ferromagnetic transition in UGe2

Journal of Physics: Conference Series 200 (2010) 032028.

N. Kabeya, R. Iijima, E. Osaki, S. Ban, K. Imura, K. Deguchi, N. Aso, Y.Homma, Y. Shiokawa and N. K. Sato

 

Weakly first-order behavior in ferromagnetic transition of UCoGe revealed by Co-59-NQR studies
Physica C-Superconductivity and its applications 470 Suppl. 1 (2010) S561-S563.
DOI: 10.1016/j.physc.2009.10.057  
T. Hattori, K. Ishida, Y. Nakai, T. Ohta, K. Deguchi, N. K. Sato, I. Satoh

 

Unusual Meissner state of the superconducting ferromagnet UCoGe revealed by differential susceptibility measurements with a polycrystalline sample

Physica C-Superconductivity and its applications 470 Suppl. 1 (2010) S575-S576.  (DEC 2010) 
DOI: 10.1016/j.physc.2010.01.029
K. Deguchi, S. Ban, E. Osaki, I. Satoh, N. K. Sato

U系重い電子系超伝導体UCoGeにおける新奇な超伝導状態
固体物理、45, No.6 (2010) 25-33.

石田憲二、服部泰祐、井原慶彦、中井祐介、佐藤憲昭、出口和 彦、田村暢之、佐藤伊佐務


2009年以前

編集中