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Title: Independence of spin-orbit torques from the exchange bias direction in N i 81 F e 19 / IrMn bilayers

We investigated a possible correlation between spin Hall angles and exchange bias in Ni 81Fe 19/IrMn samples by performing spin torque ferromagnetic resonance measurements. This correlation is probed by patterning of Ni 81Fe 19/IrMn bilayers in different relative orientations with respect to the exchange bias direction. The measured voltage spectra allow a quantitative determination of spin Hall angles, which are independent of the orientation around 2.8±0.3%.
Authors:
 [1] ;  [2] ;  [2] ;  [2] ;  [3] ;  [4] ;  [2] ;  [4]
  1. Argonne National Lab. (ANL), Lemont, IL (United States); Illinois Inst. of Technology, Chicago, IL (United States)
  2. Univ. of Lorraine, Nancy (Florida)
  3. Argonne National Lab. (ANL), Lemont, IL (United States); Oakland Univ., Rochester, MI (United States)
  4. Argonne National Lab. (ANL), Lemont, IL (United States)
Publication Date:
Grant/Contract Number:
AC02-06CH11357
Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 98; Journal Issue: 9; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; USDOE
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS
OSTI Identifier:
1473606
Alternate Identifier(s):
OSTI ID: 1469041

Saglam, Hilal, Rojas-Sanchez, J. Carlos, Petit, Sebastien, Hehn, Michel, Zhang, Wei, Pearson, John E., Mangin, Stephane, and Hoffmann, Axel. Independence of spin-orbit torques from the exchange bias direction in Ni81Fe19/IrMn bilayers. United States: N. p., Web. doi:10.1103/PhysRevB.98.094407.
Saglam, Hilal, Rojas-Sanchez, J. Carlos, Petit, Sebastien, Hehn, Michel, Zhang, Wei, Pearson, John E., Mangin, Stephane, & Hoffmann, Axel. Independence of spin-orbit torques from the exchange bias direction in Ni81Fe19/IrMn bilayers. United States. doi:10.1103/PhysRevB.98.094407.
Saglam, Hilal, Rojas-Sanchez, J. Carlos, Petit, Sebastien, Hehn, Michel, Zhang, Wei, Pearson, John E., Mangin, Stephane, and Hoffmann, Axel. 2018. "Independence of spin-orbit torques from the exchange bias direction in Ni81Fe19/IrMn bilayers". United States. doi:10.1103/PhysRevB.98.094407.
@article{osti_1473606,
title = {Independence of spin-orbit torques from the exchange bias direction in Ni81Fe19/IrMn bilayers},
author = {Saglam, Hilal and Rojas-Sanchez, J. Carlos and Petit, Sebastien and Hehn, Michel and Zhang, Wei and Pearson, John E. and Mangin, Stephane and Hoffmann, Axel},
abstractNote = {We investigated a possible correlation between spin Hall angles and exchange bias in Ni81Fe19/IrMn samples by performing spin torque ferromagnetic resonance measurements. This correlation is probed by patterning of Ni81Fe19/IrMn bilayers in different relative orientations with respect to the exchange bias direction. The measured voltage spectra allow a quantitative determination of spin Hall angles, which are independent of the orientation around 2.8±0.3%.},
doi = {10.1103/PhysRevB.98.094407},
journal = {Physical Review B},
number = 9,
volume = 98,
place = {United States},
year = {2018},
month = {9}
}