Volume 84, Number 2, October 2008
|Number of page(s)||5|
|Section||Condensed Matter: Structural, Mechanical and Thermal Properties|
|Published online||25 September 2008|
Temperature and electric-current dependence of charge-ordered domains in θ-(BEDT-TTF)2CsZn(SCN)4
The Graduate School of Natural Science and Technology, Okayama University - Okayama 700-8530, Japan
2 Institute of Multidisciplinary Research for Advanced Materials, Tohoku University - Sendai 980-8577, Japan
3 The Institute for Solid State Physics, The University of Tokyo - Kashiwa 277-8581, Japan
4 Department of Organic and Polymeric Materials, Tokyo Institute of Technology - Tokyo 152-8552, Japan
5 Department of Applied Physics, Waseda University - Tokyo 169-8555, Japan
Corresponding author: email@example.com
Accepted: 1 September 2008
We report X-ray diffraction measurements of the charge-ordered organic conductor -(BEDT-TTF)2CsZn(SCN)4 at various temperatures with external currents. The two kinds of diffuse scattering observed at q1 = (2/3 k 1/3) and q2 = (0 k 1/2) exhibit remarkable difference in the interplane correlation along the b-axis, the temperature dependence, and the electric-current dependence. These observations suggest that the two diffuse scatterings come from spatially different charge-ordered domains. The external current melts the q2-type domains, which can control the competition of the two orders.
PACS: 61.05.cp – X-ray diffraction / 61.66.Hq – Organic compounds / 72.20.Ht – High-field and nonlinear effects
© EPLA, 2008
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