Spin-Orbit Interaction in Symmetric Wells with Two Subbands

URN to cite this document:: urn:nbn:de:bvb:355-epub-242960
DOI to cite this document:: 10.5283/epub.24296

Bernardes, Esmerindo ; Schliemann, John ; Lee, Minchul ; Egues, J. Carlos ; Loss, Daniel

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Date of publication of this fulltext: 11 May 2012 09:40

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Abstract

We investigate the spin-orbit (SO) interaction in two-dimensional electron gases in quantum wells with two subbands. From the 8×8 Kane model, we derive a new intersubband-induced SO term which resembles the functional form of the Rashba SO but is nonzero even in symmetric structures. This follows from the distinct parity of the confined states (even or odd) which obliterates the need for ...