Crystal Structure of Charge Ordered Compound θ-(BEDT-TTF)_2RbCo(SCN)_4 at Low Temperatures(Condensed Matter: Structure, Mechanical and Thermal Properties)

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概要

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• The crystal structure of θ-(BEDT-TTF)_2RbCo(SCN)_4 in its insulating state below T_<MI> (approximately 200K) was investigated by X-ray diffraction experiments. The transfer integrals between the BEDT-TTF molecules were also calculated from the structural data, and the ionicities of BEDT-TTF molecules were estimated from the intramolecular bond length distribution. A large modulation of transfer integrals and charge disproportionation between BEDT-TTF molecules were found. The ratio of ionicities was 0 to +0.2:+0.8 to +1.0. These results were compared with thoes of the analogous salt θ-(BEDT-TTF)_2RbZn(SCN)_4.

• 一般社団法人日本物理学会の論文
• 2005-07-15

著者

• NOGAMI Yoshio

  The Graduate School of Natural Science and Technology, Okayama University

• Mori Hatsumi

  The Institute For Solid State Physics The University Of Tokyo

• Watanabe Masashi

  Institute Of Multidisciplinary Research For Advanced Materials Tohoku University

• NODA Yukio

  Institute of Multidisciplinary Research for Advanced Materials

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