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Rashba Hamiltonian and electron transport

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 04 Sep 2001Embargo end date: 01 Jan 2001 Netherlands Publisher:American Physical Society (APS)Journal:Physical Review B, volume 64 (issn: 0163-1829, eissn: 1095-3795,

Authors: Molenkamp, L.W. (author); Schmidt, G. (author); Bauer, G.E.W. (author);

doi: 10.1103/physrevb.64.121202 , 10.48550/arxiv.cond-mat/0104109

arXiv: http://arxiv.org/abs/cond-mat/0104109

Rashba Hamiltonian and electron transport

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Abstract

The Rashba Hamiltonian describes the splitting of the conduction band as a result of spin-orbit coupling in the presence of an external field and is commonly used to model the electronic structure of confined narrow-gap semiconductors. Due to the mixing of spin states some care has to be exercised in the calculation of transport properties. We derive the velocity operator for the Rashba-split conduction band and demonstrate that the transmission of an interface between a ferromagnet and a Rashba-split semiconductor does not depend on the magnetization direction, in contrast with previous assertions in the literature.

one tex file, two figures; paper to appear in this form in PRB (RC)

Country

Netherlands

Related Organizations

University of Würzburg
Germany
Delft University of Technology
Netherlands

Keywords

Condensed Matter - Mesoscale and Nanoscale Physics, Mesoscale and Nanoscale Physics (cond-mat.mes-hall), FOS: Physical sciences

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