Abstract
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.
- Received 18 September 2002
DOI:https://doi.org/10.1103/PhysRevB.67.115313
©2003 American Physical Society