This title appears in the Scientific Report :
2014
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevLett.113.196602 in citations.
Please use the identifier: http://hdl.handle.net/2128/8105 in citations.
Spin Hall Effects in Metallic Antiferromagnets
Spin Hall Effects in Metallic Antiferromagnets
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 mea...
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Personal Name(s): | Zhang, Wei (Corresponding Author) |
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Jungfleisch, Matthias B. / Jiang, Wanjun / Pearson, John E. / Hoffmann, Axel / Freimuth, Frank / Mokrousov, Yuriy | |
Contributing Institute: |
Quanten-Theorie der Materialien; IAS-1 JARA-FIT; JARA-FIT Quanten-Theorie der Materialien; PGI-1 |
Published in: | Physical review letters, 113 (2014) 19, S. 196602 |
Imprint: |
College Park, Md.
APS
2014
|
DOI: |
10.1103/PhysRevLett.113.196602 |
Document Type: |
Journal Article |
Research Program: |
Spin-based and quantum information |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/8105 in citations.
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. |