| Issue |
J. Phys. I France
Volume 2, Number 5, May 1992
|
|
|---|---|---|
| Page(s) | 523 - 528 | |
| DOI | https://doi.org/10.1051/jp1:1992163 | |
DOI: 10.1051/jp1:1992163
J. Phys. I France 2 (1992) 523-528
Department of Physics and Solid State Science Center, University of California at Los Angeles, Los Angeles CA 90024, U.S.A.
© Les Editions de Physique 1992
J. Phys. I France 2 (1992) 523-528
Fluctuating conductivity above the charge density wave transition in K 0.3MoO 3
L. Degiorgi and G. GrünerDepartment of Physics and Solid State Science Center, University of California at Los Angeles, Los Angeles CA 90024, U.S.A.
(Received 5 February 1992, accepted 28 February 1992)
Abstract
We have measured the optical conductivity of K
0.3MoO
3 both above and below the charge density wave transition. We find clear evidence for a collective mode contribution to the
optical conductivity
and for a gradual opening of a pseudogap at temperatures above the charge density wave transition, but below the mean field
transition temperature. We also discuss the parameters which characterize the electrodynamic response in the fluctuation regime.
© Les Editions de Physique 1992