High Field ESR Study of Three Dimensional Spin Frustrated System MgCr_2O_4(Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties)

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概要

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• High field ESR measurements of a single crystal of the spin frustrated spinel compound MgCr_2O_4 have been performed in the temperature range from 1.7 to 80K in the frequency range from 60 to 370 GHz. We found that MgCr_2O_4 is an easy-plane type antiferromagnet with the hard axis almost along the <100> direction below the Neel temperature T_N. In order to obtain more detailed information, we have performed high field ESR measurements in an attempt to align the domains by applying a weak biaxial or uniaxial pressure. These results indicate that the structural phase transition is accompanied by a contraction along one of the <100> directions and the contracted <100> direction becomes the magnetic hard axis below T_N.

• 2006-04-15

著者

• Kindo K.

  Research Center For Materials Science At Extreme Conditions Osaka University

• YOSHIDA Makoto

  Molecular Photoscience Research Center, Kobe University

• INAGAKI Yuji

  Department of Applied Quantum Physics and Nuclear Engineering Faculty of Engineering, Kyushu Univers

• OKUBO Susumu

  Molecular Photoscience Research Center, Kobe University

• OHTA Hitoshi

  Molecular Photoscience Research Center, Kobe University

• KIKUCHI Hikomitsu

  Department of Applied Physics, University of Fukui

• Kindo Koichi

  Research Center For Materials Science At Extreme Conditions Osaka University

• KOHN Kay

  Department of Physics, Waseda University

• Kindo K

  Kyokugen Osaka University

• Kindo Koichi

  The Institute For Solid State Physics The University Of Tokyo

• HIRANO Tomoya

  The Graduate School of Science and Technology, Kobe University

• KAGOMIYA Isao

  Graduate School of Engineering, Nagoya Institute of Technology

• TOKI Makoto

  KEK

• Kosuge Koji

  Department Of Chemistry Kyoto University

• Yoshida M

  Molecular Photoscience Research Center Kobe University:institute For Solid State Physics University

• Kohn K

  Department Of Physics Waseda University

• Kosuge Koji

  Department Of Chemistry Graduate School Of Science Kyoto University

• Kohn Kay

  Department Of Applied Physics School Of Science And Engineering Waseda University

• Kato K

  Japan Synchrotron Radiation Research Institute/spring-8

• Okubo S

  Molecular Photoscience Research Center Kobe University:venture Business Laboratory Kobe University

• Okubo Susumu

  Institute For Materials Research Tohoku University

• Kagomiya Isao

  Graduate School Of Engineering Nagoya Institute Of Technology

• Kikuchi H

  Institute Of Physics University Of Tsukuba

• Kikuchi Hikomitsu

  Department Of Applied Physics Fukui University

• Inagaki Y

  Department Of Applied Quantum Physics And Nuclear Engineering Faculty Of Engineering Kyushu Universi

• Kindo Koichi

  Faculty Of Science Osaka University

• Koga K

  Department Of Superconductivity University Of Tokyo

• Kikuchi Hikomitsu

  Institute Of Physics University Of Tsukuba

• Yoshida Makoto

  Molecular Photoscience Research Center Kobe University:institute For Solid State Physics University

• Ohta Hitoshi

  Molecular Photoscience Research Center Kobe University

• Hirano Tomoya

  The Graduate School Of Science And Technology Kobe University

• Inagaki Yuji

  Department Of Physics Kyushu University

• Okubo Susumu

  Molecular Photoscience Research Center and Department of Physics, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan

• OHTA Hitoshi

  Molecular Photoscience Research Center, Kobe University:Venture Bussines Laboratory, Kobe University

• Ohta Hitoshi

  Molecular Photoscience Research Center and Department of Physics, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan

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