SPIN-ORBIT BERRY PHASE IN CONDUCTING RINGS

The spin Berry phase can be observed in conductance experiments on rings of noncentrosymmetric materials. It results in destructive interference and in the shift of the Aharonov-Bohm oscillations. The spin-orbit interaction in vacuumlike Aharonov-Bohm experiments leads to the opposite sign of the magnetoresistance in comparison with the weak localization regime in disordered conductors. A time-dependent uniaxial strain results in current in a ring.