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Novel intrinsic effects in charge and spin transport in semiconductors

Posted on:2006-10-02Degree:Ph.DType:Dissertation
University:The University of Texas at AustinCandidate:Culcer, Dimitrie MaxFull Text:PDF
GTID:1450390008461111Subject:Physics
Abstract/Summary:
This work investigates intrinsic (scattering-independent) contributions to charge and spin transport in semiconductors which have been at the forefront of research in recent years. The first chapter explores an intrinsic contribution to the anomalous Hall effect, which has been related to the Berry phase, in two dimensional paramagnetic systems. The following two chapters develop a theory of spin transport in inversion-asymmetric semiconductors. Following that, a theory describing charge and spin transport in degenerate bands is formulated. Possibilities of experimental observation are emphasized in each case. Throughout these chapters, the point of view is that of wave packet dynamics. Finally, the last chapter surveys all the above phenomena from a density matrix point of view.
Keywords/Search Tags:Spin transport, Intrinsic
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