Crossover from weak localization to weak antilocalization in a disordered microbridge

C. W. J. Beenakker; M. G. A. Crawford; P. W. Brouwer

arxiv: cond-mat/0301449 · v1 · submitted 2003-01-23 · ❄️ cond-mat.mes-hall

Crossover from weak localization to weak antilocalization in a disordered microbridge

M. G. A. Crawford , P. W. Brouwer , C. W. J. Beenakker This is my paper

classification ❄️ cond-mat.mes-hall

keywords disorderedmicrobridgeweakcorrectioncrossoverlocalizationsymmetryaffected

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We calculate the weak localization correction in the double crossover to broken time-reversal and spin-rotational symmetry for a disordered microbridge or a short disordered wire using a scattering-matrix approach. Whereas the correction has universal limiting values in the three basic symmetry classes, the functional form of the magnetoconductance is affected by eventual non-homogeneities in the microbridge.

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Crossover from weak localization to weak antilocalization in a disordered microbridge

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