Electric-field-dependent average resistance and the resistance fluctuation in one-dimensional disordered systems

Vijayagovindan, GV and Jayannavar, AM and Kumar, N (1987) Electric-field-dependent average resistance and the resistance fluctuation in one-dimensional disordered systems. In: Physical Review B, 35 (4). 2029 - 2032.

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Abstract

Following an invariant-imbedding approach, we obtain analytical expressions for the ensemble-averaged resistance (ρ) and its Sinai’s fluctuations for a one-dimensional disordered conductor in the presence of a finite electric field F. The mean resistance shows a crossover from the exponential to the power-law length dependence with increasing field strength in agreement with known numerical results. More importantly, unlike the zero-field case the resistance distribution saturates to a Poissonian-limiting form proportional to A‖F‖exp(-A‖F‖ρ) for large sample lengths, where A is constant.

Item Type:	Journal Article
Publication:	Physical Review B
Publisher:	The American Physical Society
Additional Information:	copy right of this article belongs to The American Physical Society.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	31 Jul 2009 03:08
Last Modified:	19 Sep 2010 05:38
URI:	http://eprints.iisc.ac.in/id/eprint/21746

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