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Matos-Abiague, Alex ; Fabian, Jaroslav

Tunneling anomalous and spin Hall effects

Matos-Abiague, Alex and Fabian, Jaroslav (2015) Tunneling anomalous and spin Hall effects. Physical Review Letters (PRL) 115, 056602.

Date of publication of this fulltext: 28 Nov 2016 12:39
Article
DOI to cite this document: 10.5283/epub.34908


Abstract

We predict, theoretically, the existence of the anomalous Hall effect when a tunneling current flows through a tunnel junction in which only one of the electrodes is magnetic. The interfacial spin-orbit coupling present in the barrier region induces a spin-dependent momentum filtering in the directions perpendicular to the tunneling current, resulting in a skew tunneling even in the absence of ...

We predict, theoretically, the existence of the anomalous Hall effect when a tunneling current flows through a tunnel junction in which only one of the electrodes is magnetic. The interfacial spin-orbit coupling present in the barrier region induces a spin-dependent momentum filtering in the directions perpendicular to the tunneling current, resulting in a skew tunneling even in the absence of impurities. This produces an anomalous Hall conductance and spin Hall currents in the nonmagnetic electrode when a bias voltage is applied across the tunneling heterojunction. If the barrier is composed of a noncentrosymmetric material, the anomalous Hall conductance and spin Hall currents become anisotropic with respect to both the magnetization and crystallographic directions, allowing us to separate this interfacial phenomenon from the bulk anomalous and spin Hall contributions. The proposed effect should be useful for proving and quantifying the interfacial spin-orbit fields in metallic and metal-semiconductor systems.



Involved Institutions


Details

Item typeArticle
Journal or Publication TitlePhysical Review Letters (PRL)
Publisher:AMER PHYSICAL SOC
Open Access Type:Due to SHERPA/RoMEO
Place of Publication:COLLEGE PK
Volume:115
Page Range:056602
Date2015
InstitutionsPhysics > Institute of Theroretical Physics > Chair Professor Richter > Group Jaroslav Fabian
Identification Number
ValueType
10.1103/PhysRevLett.115.056602DOI
KeywordsSPINTRONICS;
Dewey Decimal Classification500 Science > 530 Physics
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgYes
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-349086
Item ID34908

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