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Title: Berry’s phase and weak localization in the presence of spin-orbit interaction
Authors: Kumar, N.
Issue Date: 1988
Publisher: Indian Academy of Sciences
Citation: Current Science, 1988, Vol.57, p761
Abstract: Weak localization due to coherent back-scattering in the presence of spin-orbit coupling is examined for a possible manifestation of Berry's phase. The pairs of counter-propagating wave-amplitudes along the time-reversed Boltzoannian paths are shown to accumulate random relative phase which is purely geometric in the adiabatic limit. The resulting dephasing time 7, has quartic field dependence and scales as c;'-.and c ~ ?-respectively<. In two and three dimensions, where c1 is the spin-orbit impurity concentration. Optimal experimental conditions are discussed.
Description: Restricted Access.
ISSN: 0011-3891
Copyright: 1988 Indian Academy of Sciences
Appears in Collections:Research Papers (TP)

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