Spin orientation and spin-Hall effect induced by tunneling electrons

A. G. Mal'shukov*, Chon-Saar Chu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

It is shown that a flux of unpolarized electrons across a symmetric double barrier quantum well induces a spin polarization inside the well. Besides, the transmitted current acquires a spin polarized component and the spin-Hall current flows in the planar direction. These phenomena are due to a combined effect of Dresselhaus interaction and the spin-orbit interaction induced by gradients of heterostructure material parameters. In contrast to previous studies of the spin filtering effect, we predict that it can be observed in the case of an isotropic distribution of incident electrons.

Original languageEnglish
Article number245326
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume76
Issue number24
DOIs
StatePublished - 27 Dec 2007

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