Phase Transition and Spin Dynamics in LiVO_2

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概要

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• The phase transition and the spin dynamics in a triangular lattice compound LiV0.have been studied through magnetic susceptibility and NMR measurements. It hasbeen found that the quadrupole effect and the anisotropy of the Knight shift of the51y nuclei are appreciably induced due to the distortion of the local symmetry at the Vtons below the nonmagnetic-magnetic transition temperatures which are about 500 Kon heating and 440 K on cooling. The electronic state and the spin dynamics of V Tonsabove the transition have been explained by the localized spin model with the spinnumber .s'or. It has also been suggested that the dynamics from the transition toabout 140 K may be described by the thermally excited spin whose ground state ispossibly spin-singlet due to the trimerization of V" ions.[triangu1ar lattice, LiV0., phase transition, spin dynamics, trimer, magnetic sus- ll ceptibility, NMRl

• 社団法人日本物理学会の論文
• 1991-08-15

著者

• NAGASAWA Hiroshi

  Institute of Physics,University of Tsukuba

• ONODA Masashige

  Institute for Molecular Science, Okazaki National Research Institutes

• Onoda Masaru

  Institute Of Particle And Nuclear Studies Kek

• Naka T

  Materials Engineering Laboratory National Institute Of Materials Science

• Naka T

  Osaka City Univ. Medical School Osaka Jpn

• Naka Takashi

  Institute Of Physics University Of Tsukuba

• Naka Takashi

  Department Of Bioscience And Biotechnology Shinshu University

• Naka Takashi

  Institute Of Multidisciplinary Research For Advanced Materials Tohoku University

• Mitsuko ONODA

  National Institute for Research in Inorganic Materials

• Nagasawa H

  Institute Of Physics University Of Tsukuba

• Onoda M

  National Inst. Of Advanced Industrial Sci. And Technol. (aist) Ibaraki

• Onoda Masashige

  Institute For Molecular Science Okazaki National Research Institutes

• Nagasawa Hiroshi

  Institute For Solid State Physics The University Of Tokyo

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