TY  - JOUR
AU  - Zhang, Wei
AU  - Jungfleisch, Matthias B.
AU  - Jiang, Wanjun
AU  - Liu, Yaohua
AU  - Pearson, John E.
AU  - Velthuis, Suzanne G. E. te
AU  - Hoffmann, Axel
AU  - Freimuth, Frank
AU  - Mokrousov, Yuriy
TI  - Reduced spin-Hall effects from magnetic proximity
JO  - Physical review / B
VL  - 91
IS  - 11
SN  - 1098-0121
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2015-02294
SP  - 115316
PY  - 2015
AB  - Harnessing spin-orbit coupling for the manipulation of spins and magnetization via electric charge currents is the key objective of spin-orbitronics. Towards this end ferromagnetic materials are combined with nonmagnetic materials with strong spin-orbit coupling (typically involving heavy elements). However, many of the nominally nonmagnetic materials are highly susceptible to magnetic proximity effects, and the role of induced moments for spin transport has been controversial. Here we demonstrate that for Pt and Pd increased induced magnetic moments are correlated with strongly reduced spin-Hall conductivities. This observation finds an intuitive explanation in the development of a spin splitting of the chemical potential and the energy dependence of the intrinsic spin-Hall effect determined by first-principles calculations. This work provides simple guidance towards the optimization of spin current efficiencies for devices based on spin-orbit coupling phenomena.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000352017800002
DO  - DOI:10.1103/PhysRevB.91.115316
UR  - https://juser.fz-juelich.de/record/189052
ER  -