Kondo effect in a Aharonov-Casher interferometer
Abstract
We consider a model describing a spin field-effect transistor based on a quantum nanowire with a tunable spin-orbit interaction embedded between two ferromagnetic leads with anticollinear magnetization. We investigate a regime of a strong interplay between resonance Kondo scattering and interference associated with the Aharonov-Casher effect. Using the Keldysh technique at weak coupling regime we calculate perturbatively the charge current. It is predicted that the effects of the spin-orbit interaction result in a non-vanishing current for any spin polarization of the leads including the case of fully polarized anti-collinear contacts. We analyze the influence of the Aharonov-Casher phase and degree of spin polarization in the leads onto a Kondo temperature.
Keywords
Cite
@article{arxiv.1909.04524,
title = {Kondo effect in a Aharonov-Casher interferometer},
author = {A. V. Parafilo and L. Y. Gorelik and M. N. Kiselev and H. C. Park and R. I. Shekhter},
journal= {arXiv preprint arXiv:1909.04524},
year = {2019}
}