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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Bibliographic Details
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
Description
Summary: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.
ISSN:2158-3226