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

L. E. SEGURA AND M. J. SÁNCHEZ

PHYSICAL REVIEW B - CONDENSED MATTER AND MATERIALS PHYSICS

APS

Año: 2009 vol. 79 p. 195320 - 1953206

0163-1829

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 polarizationinduced 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 anin-plane electric field, could be used to manipulate and functionalize the spin polarization in electronic nanorings.