Spin hall accumulation in ballistic nanojunctions

S. Bellucci () and P. Onorato

The European Physical Journal B: Condensed Matter and Complex Systems, 2007, vol. 59, issue 1, 35-40

Abstract: We propose a new scheme of spin filtering employing ballistic nanojunctions patterned in a two dimensional electron gas (2DEG). Our proposal is essentially based on the spin-orbit (SO) interaction generated by a lateral confining potential (β-SO coupling ). We demonstrate that the flow of a longitudinal unpolarized current through a ballistic T and X junction with this spin-orbit coupling will induce a spin accumulation which has opposite signs for the two lateral probes and is, therefore, the principal observable signature of the spin Hall effect in these devices. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2007

Keywords: 72.25.-b Spin polarized transport; 72.20.My Galvanomagnetic and other magnetotransport effects; 73.50.Jt Galvanomagnetic and other magnetotransport effects (including thermomagnetic effects) (search for similar items in EconPapers)
Date: 2007
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DOI: 10.1140/epjb/e2007-00269-1

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