Anisotropic profiles in the spin polarization of multichannel semiconductor rings with Rashba spin orbit coupling

Details Anisotropic profiles in the spin polarization of multichannel semiconductor rings with Rashba spin orbit coupling Anisotropic profiles in the spin polarization of multichannel semiconductor rings with Rashba spin orbit coupling

2008-11-25

arxiv.org/abs/0811.4125v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

14 pages preprint form,5 figures

Scientific paper

We investigate the spin accumulation effect in eccentric semiconductor multichannel rings with Rashba spin-orbit interaction and threaded by a magnetic flux. Due to the finite eccentricity, the spin polarization induced at the borders of the sample is anisotropic and exhibits different patterns and intensities at specific angular directions. This effect, reminiscent of the spin polarization drift induced by the application of an in plane electric field, could be used to manipulate and functionalize the spin polarization in electronic nanorings.

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