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Title: Spin Hall Effects in Metallic Antiferromagnets

Abstract

In this paper, 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. Finally, 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.

Authors:
 [1];  [1];  [1];  [1];  [1];  [2];  [2]
  1. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
  2. Forschungszentrum Julich (Germany). Peter Grunberg Inst. Inst. for Advanced Simulation
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States); Forschungszentrum Juelich (Germany)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); German Research Foundation (DFG)
OSTI Identifier:
1356655
Alternate Identifier(s):
OSTI ID: 1181195
Grant/Contract Number:  
AC02-06CH11357; VH-NG-513; SPP 1538
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 113; Journal Issue: 19; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE

Citation Formats

Zhang, Wei, Jungfleisch, Matthias B., Jiang, Wanjun, Pearson, John E., Hoffmann, Axel, Freimuth, Frank, and Mokrousov, Yuriy. Spin Hall Effects in Metallic Antiferromagnets. United States: N. p., 2014. Web. doi:10.1103/PhysRevLett.113.196602.
Zhang, Wei, Jungfleisch, Matthias B., Jiang, Wanjun, Pearson, John E., Hoffmann, Axel, Freimuth, Frank, & Mokrousov, Yuriy. Spin Hall Effects in Metallic Antiferromagnets. United States. doi:10.1103/PhysRevLett.113.196602.
Zhang, Wei, Jungfleisch, Matthias B., Jiang, Wanjun, Pearson, John E., Hoffmann, Axel, Freimuth, Frank, and Mokrousov, Yuriy. Tue . "Spin Hall Effects in Metallic Antiferromagnets". United States. doi:10.1103/PhysRevLett.113.196602. https://www.osti.gov/servlets/purl/1356655.
@article{osti_1356655,
title = {Spin Hall Effects in Metallic Antiferromagnets},
author = {Zhang, Wei and Jungfleisch, Matthias B. and Jiang, Wanjun and Pearson, John E. and Hoffmann, Axel and Freimuth, Frank and Mokrousov, Yuriy},
abstractNote = {In this paper, 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. Finally, 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.},
doi = {10.1103/PhysRevLett.113.196602},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 19,
volume = 113,
place = {United States},
year = {2014},
month = {11}
}

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Free Publicly Available Full Text
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Cited by: 95 works
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    Works referencing / citing this record:

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