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Kondo effect in a Aharonov-Casher interferometer

Journal article
Authors A. V. Parafilo
L. Y. Gorelik
M. N. Kiselev
H. C. Park
Robert I. Shekhter
Published in Physical Review B
Volume 100
Issue 23
Pages 7
ISSN 2469-9950
Publication year 2019
Published at Department of Physics (GU)
Pages 7
Language en
Keywords quantum-dot, Materials Science, Physics
Subject categories Physical Sciences, Material physics with surface physics


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 a weak-coupling regime we calculate perturbatively the charge current. It is predicted that the effects of the spin-orbit interaction result in a nonvanishing current for any spin polarization of the leads including the case of fully polarized anticollinear contacts. We analyze the influence of the Aharonov-Casher phase and degree of spin polarization in the leads onto a Kondo temperature.

Page Manager: Webmaster|Last update: 9/11/2012

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