Direct Observation of an Incommensurate Multipolar Order in CeB_6 Doped with Pr(Condensed matter: electronic structure and electrical, magnetic, and optical properties)

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概要

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• Observations on an ordered alloy Ce_<0.7>Pr_<0.3>B_6 by non-resonant X-ray diffraction are reported. We find incommensurate reflections (2δ, 1/2, 0) (δ〜0.23) below about 3K in zero applied magnetic field. The wave vector dependence of the intensity is compelling evidence for the first direct observation of an incommensurate multipolar ordering (MPO). The incommensurate MPO appears to coexist with a commensurate MPO with a wave vector (1/2, 1/2, 1/2), which is the ground state configuration. Additional insight to the properties is derived from extensive measurements made with the alloy placed in a magnetic field ranging up to 6T. We propose that a competition among RKKY-like exchange interactions between the Ce-Ce, Ce-Pr, and Pr-Pr multipoles is a main source for the appearance of the incommensurate MPO.

• 社団法人日本物理学会の論文
• 2006-07-15

著者

• Kindo K

  Advanced Science Research Center Japan Atomic Energy Agency

• Kindo K

  Institute For Solid State Physics The University Of Tokyo

• Kindo K.

  Research Center For Materials Science At Extreme Conditions Osaka University

• 世良 正文

  Department Of Quantum Matter Graduate School Of Advanced Sciences Of Matter Hiroshima University

• SERA Masafumi

  Department of Quantum Matter, AdSM, Hiroshima University

• 勝又 紘一

  理研播磨研

• 勝又 紘一

  Riken Spring-8 Center Harima Institute

• TANAKA Yoshikazu

  RIKEN SPring-8 Center, Harima Institute

• KATSUMATA Koichi

  RIKEN SPring-8 Center, Harima Institute

• TABATA Yoshikazu

  Graduate School of Science, Osaka University

• KIKKAWA Akiko

  RIKEN SPring-8 Center

• IGA Fumitoshi

  Department of Quantum Matter, ADSM, Hiroshima University

• LOVESEY Stephen

  RIKEN SPring-8 Center, Harima Institute

• SHIMOMURA Susumu

  Faculty of Science and Technology, Keio University

• KISHIMOTO Shuji

  Department of Physics, Hiroshima University

• Kindo Koichi

  Research Center For Materials Science At Extreme Conditions Osaka University

• Lovesey Stephen

  Riken Spring-8 Center Harima Institute:isis Facility Rutherford Appleton Laboratory

• Sera M

  Department Of Quantum Matter Graduate School Of Advanced Sciences Of Matter Hiroshima University

• Sera M

  Department Of Quantum Matter Adsm Hiroshima University

• Sera Masafumi

  Department Of Physics Nagoya University

• Kindo K

  Kyokugen Osaka University

• Kishio K

  Inst. For Solid State Physics The Univ. Of Tokyo

• Sera Masafumi

  Department Of Physics Faculty Of Science Nagoya University

• Kindo Koichi

  The Institute For Solid State Physics The University Of Tokyo

• Takayama Y.

  Department Of Physics Tokyo Metropolitan University

• Iga Fumitoshi

  Graduate School Of Science And Technology Niigata University

• Iga Fumitoshi

  Adsm Hiroshima University

• Kosuge Koji

  Department Of Chemistry Kyoto University

• Kosuge Koji

  Department Of Chemistry Graduate School Of Science Kyoto University

• Takeda Yukiharu

  Synchrotron Radiation Research Center Japan Atomic Energy Agency

• Kato K

  Japan Synchrotron Radiation Research Institute/spring-8

• Iga Fumitoshi

  Department Of Quantum Matters Adsm Hiroshima University

• Iga Fumitoshi

  Department Of Physics Tohoku University

• Kikkawa Akiko

  Riken Spring-8 Center Harima Institute

• Katsumata Koichi

  Riken Spring-8 Center Harima Institute

• Tabata Y

  Riken Spring-8 Center Harima Institute

• Tabata Yoshikazu

  Graduate School Of Science Osaka University

• Kindo Koichi

  Faculty Of Science Osaka University

• Koga K

  Department Of Superconductivity University Of Tokyo

• Kishimoto Shuji

  Department Of Physics Hiroshima University

• Sera M

  Institute Of Materials Structure Science High Energy Accelerator Research Organization (kek)

• Kikkawa Akiko

  Riken Harima Institute

• Iga F

  Graduate School Of Science And Technology Niigata University

• Iga Fumitoshi

  Dpartmeot Of Quantum Matter Adsm Hiroshima University

• Tanaka Yoshikazu

  Riken

• KATSUMATA Koichi

  RIKEN

• IGA Fumitoshi

  Department of Physics, Hiroshima University

• SERA Masafumi

  Department of Physics, Hiroshima University

• LOVESEY Stephen

  RIKEN SPring-8 Center, Harima Institute:ISIS Facility, Rutherford Appleton Laboratory

• KIKKAWA Akiko

  RIKEN

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