Crossover from weak localization to weak antilocalization in a disordered microbridge

@article{Crawford2003CrossoverFW,
  title={Crossover from weak localization to weak antilocalization in a disordered microbridge},
  author={M. G. Crawford and P. Brouwer and C. Beenakker},
  journal={Physical Review B},
  year={2003},
  volume={67},
  pages={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 nonhomogeneities in the microbridge. 
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