Macroscopic Quantum Tunneling in Quasi One-Dimensional Metals. II. Theory

Publisher Website

26 August 1985

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 55 (9) , 1010-1013
https://doi.org/10.1103/physrevlett.55.1010

Abstract

A consequence of photon-assisted-tunneling theory of charge-density waves in quasi one-dimensional metals is that the ac conductivity

σ (ω) ≃ σ_{b} \exp (- \frac{ω_{s}}{ω})

scales with the dc current

\frac{I_{dc} (E)}{(E - E_{T})} = σ_{b} \exp (- \frac{E_{0}}{E})

. In a revised theory,

ω_{s} = (\frac{c_{0}}{v_{F}}) ω_{p}

, where

c_{0}

is the phason velocity and

ω_{p}

the pinning frequency. Expressions are derived for

ω_{s}

and

E_{0}

. Relevant lengths are the Lee-Rice domain length,

L_{d} = \frac{π c_{0}}{ω_{p}}

, the free path,

L \sim \frac{c_{0}}{ω_{p}}

, and the current-current correlation length,

L_{I} \sim (\frac{v_{F}}{c_{0}}) L_{d}

.

Keywords

This publication has 24 references indexed in Scilit:

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