NMR Studies for Spinel Phase Li_xZn_<1-x>V_2O_4 System

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概要

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• The mechanism of magnetic and transport properties of the spinel phase Li.Zn. .V.0. system was studied by using NMR technique. On the basis of 5ly NMR, it wasfound that metallic-magnetic state of LiV.0. and raonmetallic-nonmagnetic state ofZnV.0. coexist in Li.Zn. .V.0. system. The ,X'-dependence of the ratio betweenmetallic-magnetic state and nonmagnetic state was determined and its origin was dis-cussed. The 'Li NMR shift measurement suggested that there existed the preferenceof valency of vanadium ions depending on the nearest neighbor configuration of Li"ions or Zn" ions. The metal-insulator transition of this system was understood interms of the percolation effect of the metallic-magnetic vanadium ions.

• 社団法人日本物理学会の論文
• 1990-06-15

著者

• AMAKO Yasushi

  Department of Physics, Faculty of Science, Shinshu University

• NAGASAWA Hiroshi

  Institute of Physics,University of Tsukuba

• Erata T

  Univ. Tsukuba Ibaraki

• Erata Tomoki

  Institute Of Applied Physics University Of Tsukuba

• ONODA Masashige

  Institute for Molecular Science, Okazaki National Research Institutes

• Amako Yasushi

  Institute Of Physics University Of Tsukuba

• 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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