Dynamics of Charge-Density Waves Pinned by Impurities

R. A. Klemm; J. R. Schrieffer

doi:10.1103/PhysRevLett.51.47

Dynamics of Charge-Density Waves Pinned by Impurities

R. A. Klemm and J. R. Schrieffer

Phys. Rev. Lett. 51, 47 – Published 4 July 1983

Abstract

The model of Fukuyama and Lee for the pinning of the charge-density-wave phase by impurities is investigated. The current-current correlation function, related to the force-force correlation function by the equation of motion, is calculated to fourth order in the impurity concentration $n_{0}$ . It is found that the threshold electric field is proportional to ${n_{0}}^{2}$ , and above threshold, the resulting current is periodic in time, exhibiting many harmonics.

Received 15 February 1983

DOI:https://doi.org/10.1103/PhysRevLett.51.47

Authors & Affiliations

R. A. Klemm

Exxon Research and Engineering Company, Linden, New Jersey 07036

J. R. Schrieffer

Exxon Research and Engineering Company, Linden, New Jersey 07036, and Department of Physics, University of California, Santa Barbara, California 93106