Crossover from weak localization to weak antilocalization in a disordered microbridge

Details Crossover from weak localization to weak antilocalization in a disordered microbridge Crossover from weak localization to weak antilocalization in a disordered microbridge

2003-01-23

arxiv.org/abs/cond-mat/0301449v1

Phys. Rev. B 67, 115313 (2003)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, RevTeX; 2 figures

Scientific paper

10.1103/PhysRevB.67.115313

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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