Evidence for Magnetic-Field-Induced Quadrupolar Ordering in the Heavy-Fermion Superconductor PrOs_4Sb_<12> (Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties)

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概要

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• Neutron diffraction experiments on the heavy-fermion superconductor PrOs_4Sb_<12> revealed that a small antiferromagnetic moment, parallel to [010] (y-direction), is induced in the field-induced phase (H ‖ z). The analysis, based on the Γ_1 singlet ground state crystal field model, shows that antiferro-order of O_<yz>-type quadrupole moments of Pr ions is formed in the field-induced phase. This strongly suggests that the crystal field ground-state of Pr ions in PrOs_4Sb_<12> is the Γ_1 singlet and the quadrupolar ordering is induced due to level crossing with an excited state under a magnetic field.

• 社団法人日本物理学会の論文
• 2003-05-15

著者

• SATO Hideyuki

  Department of Physics, Tokyo Metropolitan University

• IWASA Kazuaki

  Department of Physics, Graduate School of Science, Tohoku University

• METOKI Naoto

  Advanced Research Center, Japan Atomic Energy Research Institute

• SUGAWARA Hitoshi

  Department of Physics, Tokyo Metropolitan University

• AOKI Yuji

  Department of Physics, Tokyo Metropolitan University

• NAKAJIMA Motoki

  Department of Physics, Nihon University

• Kazuaki Iwasa

  Department Of Physics Tohoku University

• Iwasa K

  Tokyo Metropolitan Univ. Hachioji

• KOHGI Masahumi

  Department of Physics, Tokyo Metropolitan University

• ARAKI Shingo

  Graduate School of Science, Osaka University

• Mamiya K

  Department Of Physics Tokyo Metropolitan University

• Kohgi Masahumi

  Department Of Physice Tokyo Metropoliton Univesity

• Bernhoeft N

  Drfmc Spsms Cea-grenoble

• Mignot J‐m

  Eaboratoire Leon Brillouin Cea-cnrs Cea-saclay

• Gukasov A

  Eaboratoire Leon Brillouin Cea-cnrs Cea-saclay

• Aoki Yuji

  Department Of Chemistry Faculty Of Science Gakushuin University

• ARAKI Shingo

  Advanced Science Research Center, Japan Atomic Energy Research Institute

• BERNHOEFT Nick

  DRFMC, SPSMS, CEA-Grenoble

• MlGNOT Jean-Michel

  Eaboratoire Leon Brillouin, CEA-CNRS, CEA-Saclay

• GUKASOV Arsen

  Eaboratoire Leon Brillouin, CEA-CNRS, CEA-Saclay

• Kasaya M

  Tohoku Univ. Sendai

• Kasaya Mitsuo

  Uvsor Facility Institute For Molecular Science

• Mori N

  Advanced Science Research Center Japan Atomic Energy Agency

• Kawashima Miho

  Synchrotron Radiation Research Center Japan Atomic Energy Agency:(present Office)ulvac-phi Inc.

• Araki Shingo

  Graduate School Of Science Osaka University

• Iwasa Kazuaki

  Department Of Physics Faculty Of Science And Technology Keio University

• Araki S

  Graduate School Of Science Osaka University

• Metoki Naoto

  Advanced Research Center Japan Atomic Energy Research Institute

• Shiozawa Hidetsugu

  Department Of Physics Tokyo Metropolitan University

• Bernhoeft Nick

  Drfmc Spsms Cea-grenoble

• Mlgnot Jean-michel

  Eaboratoire Leon Brillouin Cea-cnrs Cea-saclay

• Sakata H

  Department Of Physics Tokyo Institute Of Technology

• Kohgi M

  Tokyo Metropolitan Univ. Tokyo

• Mori Nobuo

  Institute Of Solid State Physics University Of Tokyo

• Sato Hideyuki

  Department Of Cardiology Osaka University Graduate School Of Medicine

• Magishi Koichi

  Faculty Of Integrated Arts And Sciences The University Of Tokushima

• Sato Hideyuki

  Department Of Applied Chemistry Faculty Of Science And Technology Keio University

• Iwasa Kazuaki

  Tohoku Univ. Sendai

• Nakajima Motoki

  Department Of Physics College Of Science And Technology Nihon University

• SUGAWARA Hitoshi

  Department of Mathematical and Natural Sciences, Faculty of Integrated Arts and Sciences, The University of Tokushima

• Sugawara Hitoshi

  Department of General Internal Medicine, Omiya Medical Center, Jichi Medical University

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