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Signatures of spin-preserving symmetries in two-dimensional hole gases

URN to cite this document:
urn:nbn:de:bvb:355-epub-308546
Dollinger, Tobias ; Kammermeier, Michael ; Scholz, Andreas ; Wenk, Paul ; Schliemann, John ; Winkler, R. ; Richter, Klaus
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PDF - Accepted Version
arXiv PDF (25.11.2014)
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dated 29.04.2013
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Date of publication of this fulltext: 08 Oct 2014 13:47



Abstract

We investigate ramifications of the persistent spin helix symmetry in two-dimensional hole gases in the conductance of disordered mesoscopic systems. To this end we extend previous models by going beyond the axial approximation for III-V semiconductors. For heavy-hole subbands we identify an exact spin-preserving symmetry analogous to the electronic case by analyzing the crossover from weak ...

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