Resistance fluctuations, phase randomness and noise in one-dimensional conductors with a long-range correlated potential

Heinrichs, J and Jayannavar, AM (1988) Resistance fluctuations, phase randomness and noise in one-dimensional conductors with a long-range correlated potential. In: EPL: Europhysics Letters, 7 (4). pp. 353-358.

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Abstract

When the size (L) of a one-dimensional metallic conductor is less than the correlation length λ-1 of the Gaussian random potential, one expects transport properties to show ballistic behaviour. Using an invariant imbedding method, we study the exact distribution of the resistance, of the phase θ of the reflection amplitude of an incident electron of wave number k0, and of dθ/dk0, for λL ll 1. The resistance is non-self-averaging and the n-th resistance moment varies periodically as (1 - cos 2k0L)n. The charge fluctuation noise, determined by the distribution of dθ/dk0, is constant at low frequencies.

Item Type:	Journal Article
Publication:	EPL: Europhysics Letters
Publisher:	EDP Sciences
Additional Information:	Copyright of this article belongs to EDP Sciences.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	29 Sep 2010 10:14
Last Modified:	29 Sep 2010 10:14
URI:	http://eprints.iisc.ac.in/id/eprint/32533

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