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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Veröffentlicht in:AIP advances 2016-02, Vol.6 (2), p.025214-025214-6
Hauptverfasser: Zhang, Y. Q., Sun, N. Y., Che, W. R., Shan, R., Zhu, Z. G.
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Sprache:eng
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Zusammenfassung: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
2158-3226
DOI:10.1063/1.4942489