Origin of enhanced anomalous Hall effect in ultrathin Pt/permalloy bilayers

There are two mechanisms which could enhance spin-dependent scattering in a low dimensional Pt/Ferromagnetic metal structure. One is magnetic proximity effect. The other is spin orbit coupling proximity effect which was suggested recently. This work demonstrates that, through a series of experiments...

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Main Authors: Y. Q. Zhang, N. Y. Sun, W. R. Che, R. Shan, Z. G. Zhu
Format: Article
Language:English
Published: AIP Publishing LLC 2016-02-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4942489
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author Y. Q. Zhang
N. Y. Sun
W. R. Che
R. Shan
Z. G. Zhu
author_facet Y. Q. Zhang
N. Y. Sun
W. R. Che
R. Shan
Z. G. Zhu
author_sort Y. Q. Zhang
collection DOAJ
description There are two mechanisms which could enhance spin-dependent scattering in a low dimensional Pt/Ferromagnetic metal structure. One is magnetic proximity effect. The other is spin orbit coupling proximity effect which was suggested recently. This work demonstrates that, through a series of experiments on anomalous Hall effect, the spin orbit coupling proximity effect dominates the enhancement in very thin Pt/Permalloy bilayers. It may help to find a way to optimize magnetic transport property of spintronics devices in which the spin orbit coupling is deeply involved.
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spelling doaj.art-80d5b3c81f7646ca87bdd80984d8fcd22022-12-21T18:52:07ZengAIP Publishing LLCAIP Advances2158-32262016-02-0162025214025214-610.1063/1.4942489061602ADVOrigin of enhanced anomalous Hall effect in ultrathin Pt/permalloy bilayersY. Q. Zhang0N. Y. Sun1W. R. Che2R. Shan3Z. G. Zhu4Shanghai Key Laboratory of Special Artificial Microstructure and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai 200092, ChinaShanghai Key Laboratory of Special Artificial Microstructure and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai 200092, ChinaShanghai Key Laboratory of Special Artificial Microstructure and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai 200092, ChinaShanghai Key Laboratory of Special Artificial Microstructure and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai 200092, ChinaSchool of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, ChinaThere are two mechanisms which could enhance spin-dependent scattering in a low dimensional Pt/Ferromagnetic metal structure. One is magnetic proximity effect. The other is spin orbit coupling proximity effect which was suggested recently. This work demonstrates that, through a series of experiments on anomalous Hall effect, the spin orbit coupling proximity effect dominates the enhancement in very thin Pt/Permalloy bilayers. It may help to find a way to optimize magnetic transport property of spintronics devices in which the spin orbit coupling is deeply involved.http://dx.doi.org/10.1063/1.4942489
spellingShingle Y. Q. Zhang
N. Y. Sun
W. R. Che
R. Shan
Z. G. Zhu
Origin of enhanced anomalous Hall effect in ultrathin Pt/permalloy bilayers
AIP Advances
title Origin of enhanced anomalous Hall effect in ultrathin Pt/permalloy bilayers
title_full Origin of enhanced anomalous Hall effect in ultrathin Pt/permalloy bilayers
title_fullStr Origin of enhanced anomalous Hall effect in ultrathin Pt/permalloy bilayers
title_full_unstemmed Origin of enhanced anomalous Hall effect in ultrathin Pt/permalloy bilayers
title_short Origin of enhanced anomalous Hall effect in ultrathin Pt/permalloy bilayers
title_sort origin of enhanced anomalous hall effect in ultrathin pt permalloy bilayers
url http://dx.doi.org/10.1063/1.4942489
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