Sagayama Hajime SATO HITOSHI

Articles:  1-20 of 138

  • Characterization of the Mysterious High Field Ordered Phase around H || <111> and Finding of a New Phase Boundary in PrFe₄P₁₂

    AOKI Hidekazu , SATO Hideyuki , KIKUCHI Daisuke [他]

    Journal of the Physical Society of Japan 81(8), 084703-1-11, 2012-08

  • Crystal Field Effect on Superconducting Transition in Pr_xOs_4Sb_<12>

    TANAKA Kenya , NAMIKI Takahiro , IMAMURA Atsushi , UEDA Makoto , SAITO Takashi , TATSUOKA Sho , MIYAZAKI Ryouichi , KUWAHARA Keitaro , AOKI Yuji , SATO Hideyuki

    Journal of the Physical Society of Japan 78(6), "063701-1"-"063701-4", 2009-06-15

    References (23)

  • Temperature-Induced Change in the Magnitude of the Effective Density of States : A NQR/NMR Study of the A-Site-Ordered Perovskite System CaCu_3Ru_4O_<12>

    KATO Harukazu , TSURUTA Takuya , MATSUMURA Masahiro , NISHIOKA Takashi , SAKAI Hironori , TOKUNAGA Yo , KAMBE Shinsaku , WALSTEDT Russell E.

    Journal of the Physical Society of Japan 78(5), "054707-1"-"054707-8", 2009-05-15

    References (21)

  • Electrical, Magnetic and NMR Studies of Ge-Based Filled Skutterudites RPt_4Ge_<12> (R=La, Ce, Pr, Nd)

    TODA Masatoshi , SUGAWARA Hitoshi , MAGISHI Ko-ichi , SAITO Takahito , KOYAMA Kuniyuki , AOKI Yuji , SATO Hideyuki

    We have synthesized the polycrystalline samples of Ge-based filled skutterudites RPt_4Ge_<12> (R=La, Ce, Pr, Nd) and investigated the lattice constant, electrical resistivity, magnetic susceptib …

    Journal of the Physical Society of Japan 77(12), "124702-1"-"124702-9", 2008-12-15

    References (33)

  • Anomalous Electronic Behaviors in Ferromagnetic Kondo Lattice SmFe_4P_<12>

    KIKUCHI Daisuke , SUGAWARA Hitoshi , TANAKA Kenya , AOKI Hidekazu , KOBAYASHI Miki , SANADA Shotaro , KUWAHARA Keitaro , AOKI Yuji , SHISHIDO Hiroaki , SETTAI Rikio , ONUKI Yoshichika , HARIMA Hisatomo , SATO Hideyuki

    The electronic properties in SmFe_4P_<12> have been investigated by means of the de Haas-van Alphen effect, transverse magnetoresistance, Hall effect, and band structure calculation. We have fou …

    Journal of the Physical Society of Japan 77(11), "114705-1"-"114705-7", 2008-11-15

    References (45)

  • de Haas-van Alphen Effect in LaFePO with Two-Dimensional Cylindrical Fermi Surfaces

    SUGAWARA Hitoshi , SETTAI Rikio , DOI Yusuke , MURANAKA Hiroshi , KATAYAMA Keisuke , YAMAGAMI Hiroshi , ONUKI Yoshichika

    We have succeeded in observing the de Haas-van Alphen (dHvA) effect in LaFePO, the first reported iron-based superconductor in the iron-oxypnictide family. The four detected dHvA frequencies, which co …

    Journal of the Physical Society of Japan 77(11), "113711-1"-"113711-4", 2008-11-15

    References (22)

  • Anomalous Anisotropic Magnetoresistance in Heavy-Fermion PrFe_4P_<12>

    SUGAWARA Hitoshi , KURAMOCHI Eiichi , NAMIKI Takahiro , MATSUDA Tatsuma D. , AOKI Yuji , SATO Hideyuki

    Journal of the Physical Society of Japan 77(8), "85001-1"-"85001-2", 2008-08-15

    References (14)

  • ^<27>Al NMR Evidence for the Strong-Coupling d-Wave Superconductivity in NpPd_5Al_2

    CHUDO Hiroyuki , SAKAI Hironori , TOKUNAGA Yo , KAMBE Shinsaku , AOKI Dai , HOMMA Yoshiya , SHIOKAWA Yoshinobu , HAGA Yoshinori , IKEDA Shugo , MATSUDA Tatsuma D. , ONUKI Yoshichika , YASUOKA Hiroshi

    We present ^<27>Al NMR studies for a single crystal of the newly developed superconductor NpPd_5Al_2 (T_c=4.9K). In the superconducting state, the ^<27>Al NMR spectrum shifts to lower freq …

    Journal of the Physical Society of Japan 77(8), "83702-1"-"83702-4", 2008-08-15

    References (16)

  • Sm-Sb Bond Length in Mixed-Valence System of SmOs_4Sb_<12>

    TSUBOTA Masami , TSUTSUI Satoshi , KIKUCHI Daisuke , SUGAWARA Hitoshi , SATO Hideyuki , MURAKAMI Youichi

    The detailed crystal structure of a mixed-valent skutterudite SmOs_4Sb_<12> has been investigated by synchrotron radiation powder diffraction. Although the lattice parameter monotonically decrea …

    Journal of the Physical Society of Japan 77(7), "73601-1"-"73601-4", 2008-07-15

    References (23)

  • Magnetic Excitations in Heavy Electron State of Filled Skutterudite Pr_xLa_<1-x>Fe_4P_<12> (x = 1.00 and 0.85)

    IWASA Kazuaki , HAO Lijie , HASEGAWA Tomoo , HORIUCHI Kenji , MURAKAMI Youichi , OTSUKI Junya , KURAMOTO Yoshio , KOHGI Masahumi , KUWAHARA Keitaro , SUGAWARA Hitoshi , AOKI Yuji , SATO Hideyuki

    PrFe_4P_<12> exhibits clear heavy electron behaviors as well as the phase transition to an antiferro-type ordering of 4f electron state. In this paper, we report on inelastic neutron scattering …

    Journal of the Physical Society of Japan 77(6), "63706-1"-"63706-4", 2008-06-15

    References (31)

  • Itinerant-Electron Weak Ferromagnetism in La-Based Filled Skutterudite LaFe_4As_<12>

    TATSUOKA Sho , SATO Hideyuki , TANAKA Kenya , UEDA Makoto , KIKUCHI Daisuke , AOKI Hidekazu , IKENO Tsuyoshi , KUWAHARA Keitaro , AOKI Yuji , SUGAWARA Hitoshi , HARIMA Hisatomo

    High-quality samples of LaFe_4As_<12> with a residual resistivity ratio of 64 have been successfully synthesized under high pressure 〜4 GPa at 1100K. The magnetization, specific heat, electrical …

    Journal of the Physical Society of Japan 77(3), "33701-1"-"33701-4", 2008-03-15

    References (25)

  • Direct Observation of Low-Energy Sm Phonon in SmRu_4P_<12>

    TSUTSUI Satoshi , KOBAYASHI Hisao , ISHIKAWA Daisuke , SUTTER John P. , BARON Alfred Q. R. , HASEGAWA Takumi , OGITA Norio , UDAGAWA Masayuki , YODA Yoshitaka , ONODERA Hideya , KIKUCHI Daisuke , SUGAWARA Hitoshi , SEKINE Chihiro , SHIROTANI Ichimin , SATO Hideyuki

    Measurements of S(Q,ω) of the filled skutterudite SmRu_4P_<12> using inelastic x-ray scattering show a dispersionless mode at 9 meV. Meanwhile, the Sm partial phonon density of states measured b …

    Journal of the Physical Society of Japan 77(3), "33601-1"-"33601-4", 2008-03-15

    References (26)

  • Single Crystal Growth and the Fermi Surface Property in LuCoGa_5

    MATSUDA Tatsuma D. , HAGA Yoshinori , SAKAI Hironori , AOKI Dai , IKEDA Shugo , YAMAMOTO Etsuji , SHISHIDO Hiroaki , SETTAI Rikio , HARIMA Hisatomo , ONUKI Yoshichika

    We succeeded in growing a high-quality single crystal of LuCoGa_5 with the HoCoGa_5-type tetragonal crystal structure by the Ga self-flux method. The lattice parameters, fractional coordinates, and th …

    Journal of the Physical Society of Japan 77(2), "24704-1"-"24704-6", 2008-02-15

    References (32)

  • Anomalous Flux Line Lattice in CeCoIn_5

    OHIRA KAWAMURA Seiko , SHISHIDO Hiroaki , KAWANO FURUKAWA Hazuki , LAKE Bella , WIEDENMANN Albrecht , KIEFER Klaus , SHIBAUCHI Takasada , MATSUDA Yuji

    Flux line lattice (FLL) of a quasi-two-dimensional heavy fermion superconductor CeCoIn_5 in perpendicular field was investigated by small-angle neutron scattering technique. A square FLL was observed …

    Journal of the Physical Society of Japan 77(2), "23702-1"-"23702-4", 2008-02-15

    References (32)

  • Nonmagnetic Ground State in Fully Filled Pr_xFe_4Sb_<12> (x = 1.0) Synthesized under High Pressure

    TANAKA Kenya , KAWAHITO Yusuke , YONEZAWA Yuki , KIKUCHI Daisuke , AOKI Hidekazu , KUWAHARA Keitaro , ICHIHARA Masaki , SUGAWARA Hitoshi , AOKI Yuji , SATO Hideyuki

    We have succeeded in synthesizing the filled skutterudite Pr_xFe_4Sb_<12> with the Pr-site filling fraction x close to 1 under high pressure. The residual resistivity of〜24μΩ・cm is several times …

    Journal of the Physical Society of Japan 76(10), "103704-1"-"103704-4", 2007-10-15

    References (23)

  • Superconducting Properties of Pr-Based Filled Skutterudite PrRu_4As_<12>

    NAMIKI Takahiro , AOKI Yuji , SATO Hideyuki , SEKINE Chihiro , SHIROTANI Ichimin , MATSUDA Tatsuma D. , HAGA Yoshinori , YAGI Takehiko

    We report on a systematic study of the superconducting characteristics and Pr crystalline-electric-field (CEF) levels of the filled skutterudite PrRu 4As 12 (T_C=2.33K). The temperature dependences of …

    Journal of the Physical Society of Japan 76(9), "93704-1"-"93704-4", 2007-09-15

    References (35)

  • Effect of La Impurities on the Phase Transitions in PrFe_4P_<12>

    TAYAMA Takashi , ISOBE Yuta , SAKAKIBARA Toshiro , SUGAWARA Hitoshi , AOKI Yuji , SATO Hideyuki

    The effect of La impurities on the low-field (A phase) and high-field (B phase) ordered states in PrFe_4P_<12> has been studied using dc magnetization measurements on a series of Pr_<1-x>L …

    Journal of the Physical Society of Japan 76(8), "83702-1"-"83702-4", 2007-08-15

    References (23)

  • X-ray Absorption and Inverse Photoemission Study of Y_<1-x>Ca_xTiO_3

    ARITA Masashi , SATO Hitoshi , HIGASHI Masayuki , YOSHIKAWA Kunta , SHIMADA Kenya , SAWADA Masahiro , UEDA Yuko , NAMATAME Hirofumi , TANIGUCHI Masaki , FUJIOMORI Sin-ichi , SAITOH Yuji , TSUBOTA Masami , IGA Fumitoshi , TAKABATAKE Toshiroh

    We have performed the O 1s x-ray absorption (XAS) and resonant inverse photoemission spectroscopy (RIPES) in Mott insulator YTiO_3, band insulator CaTiO_3 and Y_<0.61>Ca_<0.39>TiO_3 with a …

    Journal of the Physical Society of Japan 76(7), "74720-1"-"74720-3", 2007-07-15

    References (13)

  • Electrical and Magnetic Properties of an Ising-type Ferromagnet NpSb_2

    HOMMA Yoshiya , AOKI Dai , HAGA Yoshinori , SAKAI Hironori , IKEDA Shugo , YAMAMOTO Etsuji , NAKAMURA Akio , SHIOKAWA Yoshinobu , ONUKI Yoshichika

    We succeeded in growing a single crystal of NpSb_2 with the SmSb_2-type orthorhombic structure by the Sb-flux method and measured the electrical resistivity, specific heat, magnetic susceptibility and …

    Journal of the Physical Society of Japan 76(7), "74715-1"-"74715-6", 2007-07-15

    References (31)

  • Single Crystal Growth and Fermi Surface Property in ThRhIn_5

    MATSUDA Tatsuma D. , HAGA Yoshinori , YAMAMOTO Etsuji , IKEDA Shugo , SHISHIDO Hiroaki , SETTAI Rikio , HARIMA Hisatomo , ONUKI Yoshichika

    We succeeded in growing a high-quality single crystal of ThRhIn_5 with the HoCoGa_5-type tetragonal crystal structure by the In-flux method. The lattice parameters, positional parameters and thermal p …

    Journal of the Physical Society of Japan 76(6), "64712-1"-"64712-7", 2007-06-15

    References (29)

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