XAFS study on RbC $_{60}$

Kubozono, Yoshihiro*; Mimura, Kazue*; Takabayashi, Yasuhiro*; Maeda, Hironobu*; Kashino, Setsuo*; Emura, Shuichi*; Nishihata, Yasuo; Uruga, Tomoya*; Tanaka, Tsunehiro*; Takahashi, Masao*

The Rb K-edge XAFS spectra for the stable phase of RbC60 which is a quasi one-dimensional polymer were measured in the temperature range from 14.6 to 210 K in order to clarify the origin of the metal-insulator transition around 50 K. The distances and mean-square relative displacements between the Rb atom and the neighboring C atoms determined by XAFS exhibited no change around 50 K, implying that the metal-insulator transition originates from the SDW instablity.

Language	:	English
Journal	:	Journal of Synchrotron Radiation
Volume	:	6
Number	:	Part3
Pages	:	p.564 - 566
Publication Year/Month	:	1999/05
Meeting title	:	10th International Conference on X-ray Absorption Fine Structure (XAFS-10)
Held date	:	1998/08
Location (city)	:	Chicago
Location (country)	:	U. S. A.
Patent information	:
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Keywords	:	Rb K-edge XAFS; Quasi 1D Polymer; Metal-insulator Transition; Spin Density Wave; Charge Density Wave; Lattice Distortion
Research Facility	:	SPring-8(大型放射光施設)
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Article of JAEA R&D Review	:
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Registration No. : B20020411
JAEA Abstracts No. :
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