Manipulating effective spin orbit coupling based on proximity effect in magnetic bilayers

A proximity effect of spin orbit coupling (SOC) is proposed in nonmagnetic metal/ferromagnet (NM/FM) bilayers by extending the Crépieux-Bruno (CB) theory. We demonstrate that over 1000% enhancement of the SOC strength can be realized based on this effect (Pt/FM bilayers) and it brings greatly enhanc...

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Bibliographic Details
Published in:Applied physics letters 2015-08, Vol.107 (8)
Main Authors: Zhang, Y. Q., Sun, N. Y., Che, W. R., Li, X. L., Zhang, J. W., Shan, R., Zhu, Z. G., Su, G.
Format: Article
Language:English
Subjects:
Applied physics
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Coupling
Ferromagnetism
HALL EFFECT
L-S COUPLING
LAYERS
Magnetic properties
METALS
NERNST EFFECT
Nernst-Ettingshausen effect
PROXIMITY EFFECT
Proximity effect (electricity)
Spintronics
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Summary:A proximity effect of spin orbit coupling (SOC) is proposed in nonmagnetic metal/ferromagnet (NM/FM) bilayers by extending the Crépieux-Bruno (CB) theory. We demonstrate that over 1000% enhancement of the SOC strength can be realized based on this effect (Pt/FM bilayers) and it brings greatly enhanced anomalous Hall effect and anomalous Nernst effect. This work could help maximize the performance of magnetic transport property for the spintronics device using NM/FM as the key structure.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4929585