Effect of eccentricity in the Spin Accumulation Effect induced in semico nductors rings with Rashba Spin Orbit interaction

L.E.SEGURA AND M.J.SÁNCHEZ

PHYSICA B - CONDENSED MATTER

Año: 2008

0921-4526

A spin accumulation effect (SAE) is  induced  in a semiconductor nanoring with Rashba spin-orbit interaction and pierced by a mangetic flux. We show that when  the sample is not perfectly symmetric, the  profile of the SAE  can be highly inhomogeneous along specific orientations.In particular, we  analyze the anisotropy generated in the angular profileby a finite eccentricity.We discuss the feasibility of detecting the effect  with usual magneto optical techniques  for a  number of electrons  and values of magnetic fluxes experimentally accessible.