Spin-orbit scattering for localized electrons: Absence of negative magnetoconductance

Yigal Meir, Ned S. Wingreen, Ora Entin-Wohlman, Boris L. Altshuler

Research output: Contribution to journalArticlepeer-review

51 Scopus citations

Abstract

The distribution of hopping conductances in the strongly localized regime in the presence of both a magnetic field and spin-orbit (SO) scattering is calculated via an analytic independent-directed-path formalism, and a locator expansion which includes all correlations between paths. Both methods lead to a positive magnetoconductance for all strengths of SO scattering, contrary to recent random-matrix theory predictions. Extensive numerical simulations demonstrate that the crossover from negative to positive magnetoconductance occurs as the system size exceeds the localization length.

Original languageEnglish
Pages (from-to)1517-1520
Number of pages4
JournalPhysical Review Letters
Volume66
Issue number11
DOIs
StatePublished - 1 Jan 1991
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy

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