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X-ray evidence for a deformation of CDW during the sliding motion in K0.30MoO3 |
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| Authors: | T Tamegai K Tsutsumi S Kagoshima Y Kanai M Tani H Tomozawa M Sato K Tsuji J Harada M Sakata T Nakajima |
| Institution: | 1. Department of Pure and Applied Sciences, University of Tokyo, Komaba 3-8-1, Meguro, Tokyo 153, Japan;2. Institute for Solid State Physics, University of Tokyo, Roppongi 7-22-1, Minato, Tokyo 106, Japan;3. Department of Applied Physics, Nagoya University, Furo-cho, Chikusa, Nagoya 464, Japan;4. National Laboratory for High Energy Physics, Oho, Tsukuba, Ibaraki 305, Japan |
| Abstract: | The wave vector and the correlation length of the CDW ordering in K0.30MoO3 are studied by x-ray diffraction as functions of electric fields applied along the one-dimensional axis. Several samples change their CDW-ordering above a threshold field. The change of the wave vector occurs mainly in the (2a1-c1) - direction, which is perpendicular to the one-dimensional b1 - axis. It depends also on the field direction and magnitude. Time resolved x-ray experiments show that characteristic time of this change is of the order of 1 ms. The correlation length becomes longer along the (2a1-c1)-direction in the transient period. |
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