Document Type

Article

Date

5-23-1994

Embargo Period

11-1-1994

Keywords

low temperature physics, statistical physics, condensed matter physics

Language

English

Disciplines

Physics

Description/Abstract

We discuss the low-temperature dynamics of magnetic flux lines in samples with a family of parallel twin planes. A current applied along the twin planes drives flux motion in the direction transverse to the planes and acts like an electric field applied to {\it one-dimensional} carriers in disordered semiconductors. As in flux arrays with columnar pins, there is a regime where the dynamics is dominated by superkink excitations that correspond to Mott variable range hopping (VRH) of carriers. In one dimension, however, rare events, such as large regions void of twin planes, can impede VRH and dominate transport in samples that are sufficiently long in the direction of flux motion. In short samples rare regions can be responsible for mesoscopic effects.

Additional Information

This article is from arXiv.org, for more information see http://arxiv.org/abs/cond-mat/9311005

Source

harvested from arXiv.org

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Physics Commons

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