%0 Journal Article
%A Zhang, Wei
%A Jungfleisch, Matthias B.
%A Jiang, Wanjun
%A Pearson, John E.
%A Hoffmann, Axel
%A Freimuth, Frank
%A Mokrousov, Yuriy
%T Spin Hall Effects in Metallic Antiferromagnets
%J Physical review letters
%V 113
%N 19
%@ 1079-7114
%C College Park, Md.
%I APS
%M FZJ-2014-05710
%P 196602
%D 2014
%X We investigate four CuAu-I-type metallic antiferromagnets for their potential as spin current detectors using spin pumping and inverse spin Hall effect. Nontrivial spin Hall effects were observed for FeMn, PdMn, and IrMn while a much higher effect was obtained for PtMn. Using thickness-dependent measurements, we determined the spin diffusion lengths of these materials to be short, on the order of 1 nm. The estimated spin Hall angles of the four materials follow the relationship PtMn>IrMn>PdMn>FeMn, highlighting the correlation between the spin-orbit coupling of nonmagnetic species and the magnitude of the spin Hall effect in their antiferromagnetic alloys. These experiments are compared with first-principles calculations. Engineering the properties of the antiferromagnets as well as their interfaces can pave the way for manipulation of the spin dependent transport properties in antiferromagnet-based spintronics.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000344496600012
%R 10.1103/PhysRevLett.113.196602
%U https://juser.fz-juelich.de/record/172221