Raman Spectra of (Me_2-DCNQI)_2Cu_xLi_<1-x>(O ≤x ≤1) : The Evidence for Charge Separation at Room Temperature in a One-Dimensional Conductor Having a Quarter-Filled Band
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概要
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Raman spectra of (Me_2-DCNQI)_2Cu_xLi_<1-x> (0 ≤x ≤1) have been measured at room temperature, 200K, 100 K and 5 K. The observed Raman bands are assigned on the basis of the vibrational analysis done by Lunardi and Pecile. The Raman band assigned to the a_gv_<R8> fundamental mode (quinoid C=N stretching) shifts downward with an increase of x and exhibits a remarkable split for 0 ≤x ≤0.29. This frequency shift is attributable to the change of a charge density on a Me_2-DCNQI molecule. From the split of the v_<R8> Raman band, it is concluded that the charge densities on Me_2-DCNQI molecules are not equivalent even at room temperature for 0 ≤x ≤ 0.29.
- 社団法人日本物理学会の論文
- 2002-08-15
著者
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KATO Reizo
RIKEN (The institute of Physical and Chemical Research)
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TAJIMA Hiroyuki
The Institute for Solid State Physics, The University of Tokyo
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Yamamoto S
Japan Atomic Energy Research Institute Department Of Fusion Plasma Research Experimental Plasma Phys
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YAKUSHI kyuya
Institute for Molecular Science
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KOJIMA Yasuhiko
Department of Chemistry, Tokyo Metropolitan University
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Kato R
Riken (the Institute Of Physical And Chemical Research) Jst-crest
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Kato Reizo
Riken
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Yamabe T
Tokyo Inst. Technol. Tokyo Jpn
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Yamamoto T
Department Of Applied Chemistry Himeji Institute Of Technology
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Yamamoto T
Institute For Solid State Physics The University Of Tokyo
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Yasuda T
Graduate School Of Science Osaka University
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Yamamoto T
Tsukuba Research Center Sanyo Electric Co. Ltd.
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Yakushi K
Institute For Molecular Science
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Yakushi K
Inst. Molecular Sci. Okazaki
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Yamauchi K
Tokyo Metropolitan Univ. Tokyo
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Kato Reizo
Condensed Molecular Materials Lab. Riken
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Tajima Hiroyuki
The Institute For Solid State Physics The University Of Tokyo
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Yamauchi Toshihiko
Division Of Thermonuclear Fusion Research Japan Atomic Energy Research Institute
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Yamamoto Takenori
Deptarment Of Electrical And Electronic Engineering Toyohashi University Of Technology
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Yamamoto Tokujirou
Department Of Materials Science And Engineering Kyoto University
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Yamamoto T
Japan Atomic Energy Research Inst. Tokai
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Yamamoto T
Institute For Molecular Science And Graduate University For Advanced Studies:(present Office)riken
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URUICHI Mikio
Institute for Molecular Science and Graduate University for Advanced Studies
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YAMAMOTO Takashi
The Institute for Solid State Physics, The University of Tokyo
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Uruichi Mikio
Institute For Molecular Science
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Uruichi M
Institute For Molecular Science And Graduate University For Advanced Studies
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YAMAMOTO Takashi
Faculty of Science, Yamaguchi University
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Yakushi Kyuya
Graduate University For Advanced Studies
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Yamamoto Takayoshi
The Institute Of Scientific And Industrial Research Osaka University
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Yamamoto Takahisa
Department Of Applied Physics Osaka University
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Kato Reizo
Condensed Molecular Materials Lab., RIKEN
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YAMAMOTO Takashi
the Information Communication Laboratories, Sumitomo Electric Industries Ltd.
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