Electron transport in coupled chains of interacting fermions with impurities

Preprint

20 August 1997

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9708152

Abstract

We study the low-temperature transport of a doped two-chain ladder system of interacting fermions in the presence of a barrier or of a low concentration of impurities. Above a certain value of the interaction, the conductance is suppressed, like for a single chain, despite the presence of dominant superconducting correlations. There is, however, a region of repulsive interaction where perfect transmission across the barrier occurs unlike the single-chain case. We provide a possible explanation for the temperature maximum of the resistivity in the normal state of \srca.

Keywords

TEMPERATURE TRANSPORT
INTERACTING FERMIONS
SUPERCONDUCTING
COUPLED CHAINS
INTERACTION
IMPURITIES
TRANSPORT
BARRIER

All Related Versions

Version 1, 1997-08-20, ArXiv
Published version: Physical Review Letters, 79 (12), 2297.

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