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DC spin generation by junctions with AC driven spin-orbit interaction

Journal article
Authors Mats Jonson
Robert I. Shekhter
O. Entin-Wohlman
A. Aharony
H. C. Park
D. Radic
Published in Physical Review B
Volume 100
Issue 11
ISSN 2469-9950
Publication year 2019
Published at Department of Physics (GU)
Language en
Links dx.doi.org/10.1103/PhysRevB.100.115...
Keywords spectroscopy, spintronics, Materials Science, Physics
Subject categories Physical Sciences

Abstract

An unbiased one-dimensional weak link between two terminals, subjected to the Rashba spin-orbit interaction caused by an AC electric field which rotates periodically in the plane perpendicular to the link, is shown to inject spin-polarized electrons into the terminals. The injected spin polarization has a DC component along the link and a rotating transverse component in the perpendicular plane. In the low-rotation-frequency regime, these polarization components are proportional to the frequency. The DC component of the polarization vanishes for a linearly polarized electric field.

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