Interplay between Kondo tunneling and Rashba precession

Abstract

The influence of Thomas-Rashba precession on the physics of Kondo cotunneling through quantum dots is analyzed. It is shown that this precession is relevant only at finite magnetic fields. Thomas-Rashba precession results in peculiar anisotropy of the effective g factor and initiates dephasing of the Kondo cotunneling amplitude at low temperature, which is strongly dependent on the magnetic field. © 2012 American Physical Society.