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

Y. Q. Zhang | Zendy; Niuyi Sun | Zendy; William Romero | Zendy; R. Shan | Zendy; Zheng-Gang Zhu | Zendy

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

Author(s) -

Y. Q. Zhang,

Niuyi Sun,

William Romero,

R. Shan,

Zheng-Gang Zhu

Publication year - 2016

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4942489

Subject(s) - permalloy , spintronics , condensed matter physics , ferromagnetism , coupling (piping) , spin–orbit interaction , materials science , spin hall effect , scattering , proximity effect (electron beam lithography) , hall effect , spin (aerodynamics) , inductive coupling , magnetic field , physics , spin polarization , nanotechnology , magnetization , layer (electronics) , optics , quantum mechanics , resist , metallurgy , electron beam lithography , thermodynamics , electron

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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