Giant spin Hall effect induced by skew scattering from bismuth impurities inside thin film CuBi alloys.
Phys Rev Lett
; 109(15): 156602, 2012 Oct 12.
Article
em En
| MEDLINE
| ID: mdl-23102348
ABSTRACT
We demonstrate that a giant spin Hall effect (SHE) can be induced by introducing a small amount of Bi impurities in Cu. Our analysis, based on a new three-dimensional finite element treatment of spin transport, shows that the sign of the SHE induced by the Bi impurities is negative and its spin Hall (SH) angle amounts to -0.24. Such a negative large SH angle in CuBi alloys can be explained by applying the resonant scattering model proposed by Fert and Levy [Phys. Rev. Lett. 106, 157208 (2011)] to 6p impurities.
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MEDLINE
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En
Ano de publicação:
2012
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Article