Comment on fluctuation paraconductivity in quasi-one-dimensional systems

M. Weger, B. Horovitz, H. Gutfreund

Research output: Contribution to journalReview articlepeer-review

11 Scopus citations

Abstract

The results of Allender, Bray, and Bardeen for the paraconductivity above the Peierls transition in a one-dimensional system are modified to include the effects of high-frequency (optical) phonons and interchain coupling. A very good agreement with experiment on tetrathiofulvalene-tetracyanoquinodimethane (TTF-TCNQ) is thus obtained. In particular, it is shown that a mean-field theory based on low-frequency (acoustic) phonons is not consistent with the observed increase and temperature behavior of the conductivity above Tp, while high-frequency phonons (ω2pFT) fully account for the observed conductivity in the range TpT2 Tp.

Original languageEnglish
Pages (from-to)1086-1089
Number of pages4
JournalPhysical Review B
Volume12
Issue number3
DOIs
StatePublished - 1 Jan 1975
Externally publishedYes

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