| Issue |
J. Phys. IV France
Volume 131, December 2005
|
|
|---|---|---|
| Page(s) | 123 - 124 | |
| DOI | https://doi.org/10.1051/jp4:2005131028 | |
| Published online | 18 January 2006 | |
International Workshop on Electronic Crystals
S. Brazovskii, P. Monceau and N. Kirova
J. Phys. IV France 131 (2005) 123-124
DOI: 10.1051/jp4:2005131028
1 Department of Physics, University of California at Irvine, Irvine, CA 92697-4575, USA
2 RCAST, University of Tokyo, Tokyo 153-8904, Japan
3 Laboratoire de Physique Théorique et Modèles Statistiques, CNRS, Bât. 100, Université Paris-Sud, 91405 Orsay Cedex, France
© EDP Sciences 2005
S. Brazovskii, P. Monceau and N. Kirova
J. Phys. IV France 131 (2005) 123-124
DOI: 10.1051/jp4:2005131028
Conduction and optical effects in the plastic charge-density waves
N. Ogawa1, K. Miyano2 and S. Brazovskii31 Department of Physics, University of California at Irvine, Irvine, CA 92697-4575, USA
2 RCAST, University of Tokyo, Tokyo 153-8904, Japan
3 Laboratoire de Physique Théorique et Modèles Statistiques, CNRS, Bât. 100, Université Paris-Sud, 91405 Orsay Cedex, France
Abstract
The creep motion of the charge-density wave (CDW) and its modulation through optical excitation in the
low-temperature state of K0.3MoO3 are analyzed in terms of a
local pinning theory, in which local metastable states created by
pinning induced phase dislocations are considered. The nonlinear I-V
curve below the sliding threshold field (Vs) can be well reproduced with a
numerical calculation, and it is shown that photoexcitation increases
the transition probability of phase slips, which promotes the creep
motion, and also leads to a relaxation of the phase strain.
© EDP Sciences 2005