研究者詳細 - 摂待　力生

MISC - 摂待　力生

分割表示 1,079 件中 541 - 560 件目／全件表示 >>

29pPSA-23 Ce単結晶の相転移とフェルミ面(29pPSA 領域8ポスターセッション(f電子系等2),領域8(強相関系:高温超伝導,強相関f電子系など))

河井友也, 摂待力生, 大貫惇睦, 前沢邦彦

日本物理学会講演概要集 61 ( 1 ) 633 - 633 2006年3月

29pRA-11 CeCoGe_3とCeIrSi_3のフェルミ面と加圧下電気抵抗(29pRA 重い電子系超伝導(CePt_3Si系等),領域8(強相関系:高温超伝導,強相関f電子系など))

摂待力生, 杉谷一朗, 奥田悠介, 宍戸寛明, Thamizhavel Arumugam, 山田勉, 山本悦嗣, 松田達磨, 芳賀芳範, 播磨尚朝, 大貫惇睦

日本物理学会講演概要集 61 ( 1 ) 614 - 614 2006年3月

27aUF-11 異方的s波超伝導体CeRu_2の混合状態における低エネルギー励起(27aUF 重い電子系超伝導(Cell5系,他),領域8(強相関系:高温超伝導,強相関f電子系など))

山田敦司, Custers Jeroen, 榊原俊郎, 辺土正人, 摂待力生, 大貫惇睦

日本物理学会講演概要集 61 ( 1 ) 519 - 519 2006年3月

28pPSA-24 NdRu_4P_<12>の低温物性(28pPSA 領域8ポスターセッション(f電子系等I),領域8(強相関系:高温超伝導,強相関f電子系など))

菅原仁, 岩橋由典, 森育子, 真岸孝一, 斎藤隆仁, 小山晋之, 菊池大輔, 佐藤英行, 宍戸寛明, 摂待力生, 大貫惇睦

日本物理学会講演概要集 61 ( 1 ) 603 - 603 2006年3月

28pPSA-22 スクッテルダイト化合物の強磁場磁性(28pPSA 領域8ポスターセッション(f電子系等I),領域8(強相関系:高温超伝導,強相関f電子系など))

山田勉, 中島弘, 宮内裕一朗, 杉山清寛, 萩原政幸, 金道浩一, 田中謙弥, 菊池大輔, 青木勇二, 菅原仁, 佐藤英行, 摂待力生, 大貫惇睦, 播磨尚朝

日本物理学会講演概要集 61 ( 1 ) 603 - 603 2006年3月

29pRA-5 反転対称性のない圧力誘起超伝導体CeRhSi_3における^<29>Si-NMR(29pRA 重い電子系超伝導(CePt_3Si系等),領域8(強相関系:高温超伝導,強相関f電子系など))

藤井拓也, 八島光晴, 川崎慎司, 椋田秀和, 北岡良雄, 奥田悠介, Thamizhavel A., 摂待力生, 大貫惇睦

日本物理学会講演概要集 61 ( 1 ) 612 - 612 2006年3月

超ウラン化合物NpGe3とNpRhGa5の5f電子状態

青木大, 本間佳哉, 山上浩志, 塩川佳伸, 山本悦嗣, 芳賀芳範, 中村彰夫, 摂待力生, 大貫惇睦

固体物理 41 75 - 84 2006年2月

Coexistence of Antiferromagnetism and Heavy-Fermion Superconductivity in CePt3Si Studied by Neutron Scattering

Koji Kaneko, Naoto Metoki, Nicholas Bernhoeft, Tatsuma D. Matsuda, Yoshinori Haga, Takashi Yasuda, Tetsuya Takeuchi, Rikio Settai, Yoshichika Onuki

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 75 177 - 179 2006年1月

記述言語：英語出版者・発行元：PHYSICAL SOC JAPAN

Neutron scattering experiments were carried out for a non-centrosymmetric heavy-fermion superconductor CePt3Si in order to understand the novel superconducting state and magnetism. Antiferromagnetic reflections with q=(001/2) clearly persist below T-sc. No significant anomaly has been found in either the Bragg profile or intensity on passing through T-sc within our experimental accuracy. These results indicate a microscopic coexistence of antiferromagnetism and heavy-fermion superconductivity in CePt3Si. Under magnetic fields, T-N is almost constant up to 5T for fields H parallel to [001]. Note that the antiferromagnetic intensity starts increasing around 2T at 1.51K below T-N, indicating the enhancement of antiferromagnetic moment of Ce by applying fields. The observed inflection field and the field independent T-N are consistent with the result of magnetization, resistivity and magnetostriction measurements. These results reveal the stability of antiferromagnetic state in CePt3Si.

DOI： 10.1143/JPSJS.75S.177

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Fermi Surface Properties of CeIn3 around the Critical Pressure

Rikio Settai, Tetsuo Kubo, Tatsuma D. Matsuda, Yoshinori Haga, Yoshichika Onuki, Hisatomo Harima

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 75 167 - 169 2006年1月

記述言語：英語出版者・発行元：PHYSICAL SOC JAPAN

We have studied a change of the Fermi surface in an antiferromagnet CeIn3 via the de Haasvan Alphen experiment under pressure up to 2.9 GPa. In the pressure region P > P-c = 2.6GPa, we have observed a large main Fermi surface named a, which indicates that the electronic state of 4f electron in CeIn3 changes from localized to itinerant at P-c. The cyclotron effective mass m(c)* of this main Fermi surface is extremely enhanced around P-c.

DOI： 10.1143/JPSJS.75S.167

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Thermodynamics Investigation on Pressure-induced Superconductor CeNiGe3 by ac Calorimetry

Naoyuki Tateiwa, Yoshinori Haga, Tatsuma D. Matsuda, Shugo Ikeda, Miho Nakashima, Arumugam Thamizhavel, Rikio Settai, Yoshichika Onuki

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 75 174 - 176 2006年1月

記述言語：英語出版者・発行元：PHYSICAL SOC JAPAN

We measured the heat capacity of the pressure-induced superconductor CeNiGe3 by the ac calorimetry under high pressure up to 2.4 GPa using a single crystal sample grown by the Bi-flux method. The heat capacity C-ac shows the lambda-type anomaly at Neel temperature T-N. The pressure dependence of T-N is consistent with those determined previous studies by the resistivity measurement under high pressure. At 2.1 and 2.4 GPa, the heat capacity anomaly was observed around 0.3 K. This temperature is close to the superconducting transition temperature T-sc determined by the previous resistivity measurement. Therefore, the heat capacity anomaly may be due to the superconducting transition. The value of T-sc by the present heat capacity measurement was larger than those by the resistivity measurement. This might reflect a sample dependence.

DOI： 10.1143/JPSJS.75S.174

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The dHvA Experiment under Pressure in UIr

J. Phys. Soc. Jpn. 75 (2006) Suppl. 119-120. 75, Suppl. 119-120. 2006年

29pRA-13 CeNiGe_3とCeNi_2Ge_2の圧力効果(29pRA 重い電子系超伝導(CePt_3Si系等),領域8(強相関系:高温超伝導,強相関f電子系など))

三好朋之, 大貫惇睦, 川崎慎司, 北岡良雄, 福原忠, 前澤邦彦, 伊藤公平, 武田圭生, 福島賢, 日高宏之, 小手川恒, 小林達生, 中島美帆, Thamizhavel A, 摂待力生

日本物理学会講演概要集 61 ( 0 ) 614 - 614 2006年

24pYA-3 強磁性体UIrの圧力下の超伝導(24pYA 領域8シンポジウム:空間反転対称性の破れた重い電子系超伝導,領域8(強相関系:高温超伝導,強相関f電子系など))

小林達生, 芳賀芳範, 大貫惇睦, 堀彰宏, 福島賢, 日高宏之, 小手川恒, 赤澤輝彦, 摂待力生, 池田修吾, 山本悦嗣

日本物理学会講演概要集 61 ( 0 ) 465 - 465 2006年

23pPSA-52 CeRh_<1-x>Ir_xIn_5における圧力下超伝導相図(23pPSA 領域8ポスターセッション(f電子系等1),領域8(強相関系:高温超伝導,強相関f電子系など))

和田直希, 小手川恒, 日高宏之, 小林達生, 宍戸寛明, 摂待力生, 大貫惇睦

日本物理学会講演概要集 61 ( 0 ) 418 - 418 2006年

25pZR-11 NpAl_4の純良単結晶育成とドハース・ファンアルフェン効果(25pZR 5f電子系,領域8(強相関係:高温超伝導,強相関f電子系など))

青木大, 大貫惇睦, 本間佳哉, 酒井宏典, 池田修悟, 山本悦嗣, 塩川佳伸, 中村彰夫, 芳賀芳範, 摂待力生

日本物理学会講演概要集 61 ( 0 ) 511 - 511 2006年

High Pressure Study on the Heavy Fermion Superconductor CePt3Si by AC Calorimetry

Physica B. 378-380 (2006) 381-382. 378-380, 381-382. 2006年

Anisotropic Residual Resistivity under High Pressure in UIr

J. Phys. Soc. Jpn. 75 (2006) Suppl. 82-84. 75, Suppl. 82-84. 2006年

Magnetism and Superconductivity in CePt3Si under Pressure

J. Phys. Soc. Jpn. 75 (2006) Suppl. 170-173. 75, Suppl. 170-173. 2006年

Fermi surface and magnetic properties of PrTIn5 (T : Co, Rh, and Ir)

N Van Hieu, H Shishido, A Thamizhavel, R Settai, S Araki, Y Nozue, TD Matsuda, Y Haga, T Takeuchi, H Harima, Y Onuki

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 74 ( 12 ) 3320 - 3328 2005年12月

記述言語：英語出版者・発行元：PHYSICAL SOC JAPAN

We grew single crystals of PrCoIn5, PrRhln(5), and PrIrIn5 with the tetragonal crystal structure and measured the electrical resistivity, specific heat, magnetic susceptibility, magnetization and de Haas-van Alphen effect. These Pr compounds reveal no magnetic ordering. The topology of the Fermi surfaces is the same as that of a non-4f reference compound LaRhIn5. The cyclotron mass and/or the electronic specific heat coefficient are also approximately the same as those of LaRhIn5. The magnetic susceptibility and magnetization are anisotropic, reflecting the crystal structure, which are well explained by the tetragonal crystalline electric field scheme with the singlet ground state.

DOI： 10.1143/JPSJ.74.3320

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Magnetic property and pressure effect of a single crystal CeRhGe

T Ueda, D Honda, T Shiromoto, N Metoki, F Honda, K Kaneko, Y Haga, TD Matsuda, T Takeuchi, A Thamizhavel, K Sugiyama, K Kindo, R Settai, Y Onuki

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 74 ( 10 ) 2836 - 2842 2005年10月

記述言語：英語出版者・発行元：PHYSICAL SOC JAPAN

We measured the electrical resistivity, specific heat, magnetic susceptibility, high-field magnetization, neutron scattering and electrical resistivity under pressure for CeRhGe. The anisotropy of the magnetic susceptibility and magnetization are very large, reflecting the orthorhombic crystal structure. The magnetic easy-axis is found to be oriented along the a-axis. From the neutron scattering experiment, the magnetic structure is, however, not simple, indicating an incommensurate antiferromagnetic structure. The magnetic susceptibility and magnetization were analyzed on the basis of the crystalline electric field scheme of localized-4f energy levels, indicating a very large splitting energy of the 4f levels.

DOI： 10.1143/JPSJ.74.2836

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