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Electric and magnetic gating of Rashba-active weak links

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Title
Electric and magnetic gating of Rashba-active weak links
Author(s)
A. Aharony; O. Entin-Wohlman; M. Jonson; R. I. Shekhter
Subject
SPIN, SPINTRONICS
Publication Date
2018-06
Journal
PHYSICAL REVIEW B, v.97, no.22, pp.220404
Publisher
AMER PHYSICAL SOC
Abstract
In a one-dimensional weak-link wire the spin-orbit interaction (SOI) alone cannot generate a nonzero spin current. We show that a Zeeman field acting in the wire in conjunction with the Rashba SOI there does yield such a current, whose magnitude and direction depend on the direction of the field. When this field is not parallel to the effective field due to the SOI, both the charge and the spin currents oscillate with the length of the wire. Measuring the oscillating anisotropic magnetoresistance can thus yield information on the SOI strength. These features are tuned by applying a magnetic and/or an electric field, with possible applications to spintronics. ©2018 American Physical Society
URI
https://pr.ibs.re.kr/handle/8788114/4499
DOI
10.1103/PhysRevB.97.220404
ISSN
2469-9950
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > 1. Journal Papers (저널논문)
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PhysRevB.97.220404-2.pdfDownload

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