High Frequency ESR Investigationon Dynamical Charge Disproportionation and Spin Gap Excitation in NaV_2O_5 : Condensed Matter: Electronic Properties, etc.
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概要
- 論文の詳細を見る
A significant frequency dependence of the ESR line width is found in NaV_2O_5 between 34-100 K and the line width increases as the resonance frequency is increased from 95 GHz to 760 GHz. The observed frequency dependence is qualitatively explained in terms of the dynamical charge disproportionation. The present results show the essential role of the internal charge degree of freedom in a V-O-V bond. We have also proposed the existence of the Dzyaloshinsky-Moriya interaction in the low temperature charge ordered phase considering the breaking of the selection rule of ESR realized as the direct observation of the spin gap excitation.
- 社団法人日本物理学会の論文
- 2000-07-15
著者
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UEDA Yutaka
Institute for Solid State Physics, University of Tokyo
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NOJIRI Hiroyuki
Institute for Materials Research, Tohoku University
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Luther Sebastian
Institute For Materials Research Tohoku University
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MOTOKAWA Mitsuhiro
Institute for Materials Research, Tohoku University
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ISOBE Masahiko
Institute for Solid State Physics, The University of Tokyo
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Ueda Yutaka
Institute For Solid State Physics University Of Tokyo
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Nojiri Hiroyuki
Institute For Material Research Tohoku University
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Isobe Masahiko
Materials Design And Characterization Laboratory Institute For Solid State Physics The University Of
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MOTOKAWA Mitsuhiro
Department of Physics,Faculty of Science,Kobe University
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Motokawa M
Tohoku Univ. Sendai
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Motokawa Mitsuhiro
Department Of Mechanical Engineering Faculty Of Engineering And Resource Science Akita University
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Motokawa Mitsuhiro
Institute For Materials Research Tohoku University
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Isobe Masahiko
Institute For Materials Research Tohoku University
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Motokawa Mitsuhiro
Crest Japan Science And Technology:institute For Material Research Tohoku University
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Motokawa Mitsuhiro
Faculty Of Science Kobe University
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Isobe M
Department Of Physics Nagoya University
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Masuzawa Masahiro
Department Of Applied Physics Faculty Of Engineering Tohoku University
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Ueda Yutaka
Institute For Solid State Physic The University Of Tokyo
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MOTOKAWA Mitsuhiro
Department of Physics, Kobe University
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Isobe Masato
National Institute for Materials Science (NIMS)
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