Theory of Non-Ohmic Conduction from Charge-Density Waves in Nb
- 28 May 1979
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 42 (22), 1498-1500
- https://doi.org/10.1103/physrevlett.42.1498
Abstract
A theory of non-Ohmic conduction from depinning of charge-density waves by an electric field is presented. It is based on Zener-type tunneling of the charge-density waves across a gap at the Fermi surface that is determined by the pinning frequency. The theory applies to relatively pure specimens for which the pinning is due to approach to commensurability or cooperative action of impurities.Keywords
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