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Title: Reduced Spin Hall Effects from Magnetic Proximity.

Abstract

We investigate temperature-dependent spin pumping and inverse spin Hall effects in thin Pt and Pd in contact with Permalloy. Our experiments show a decrease of the spin Hall effect with decreasing temperature, which is attributed to a temperature-dependent proximity effect. The spin Hall angle decreases from 0.086 at room temperature to 0.042 at 10 K for Pt and is nearly negligible at 10 K for Pd. By first-principle calculations, we show that the spin Hall conductivity indeed reduces by increasing the proximity-induced spin magnetic moments for both Pt and Pd. This work highlights the important role of proximity-induced magnetic ordering to spin Hall phenomena in Pt and Pd.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [2];  [2]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
  2. Forschungszentrum Julich (Germany)
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1357481
Alternate Identifier(s):
OSTI ID: 1176970
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review, B: Condensed Matter
Additional Journal Information:
Journal Volume: 91; Journal Issue: 11; Journal ID: ISSN 0163-1829
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Zhang, Wei, Jungfleisch, Matthias B., Jiang, Wanjun, Liu, Yaohua, Pearson, John E., te Velthius, Suzanne G. E., Hoffmann, Axel, Freimuth, Frank, and Mokrousov, Yuri. Reduced Spin Hall Effects from Magnetic Proximity.. United States: N. p., 2015. Web. doi:10.1103/PhysRevB.91.115316.
Zhang, Wei, Jungfleisch, Matthias B., Jiang, Wanjun, Liu, Yaohua, Pearson, John E., te Velthius, Suzanne G. E., Hoffmann, Axel, Freimuth, Frank, & Mokrousov, Yuri. Reduced Spin Hall Effects from Magnetic Proximity.. United States. https://doi.org/10.1103/PhysRevB.91.115316
Zhang, Wei, Jungfleisch, Matthias B., Jiang, Wanjun, Liu, Yaohua, Pearson, John E., te Velthius, Suzanne G. E., Hoffmann, Axel, Freimuth, Frank, and Mokrousov, Yuri. 2015. "Reduced Spin Hall Effects from Magnetic Proximity.". United States. https://doi.org/10.1103/PhysRevB.91.115316. https://www.osti.gov/servlets/purl/1357481.
@article{osti_1357481,
title = {Reduced Spin Hall Effects from Magnetic Proximity.},
author = {Zhang, Wei and Jungfleisch, Matthias B. and Jiang, Wanjun and Liu, Yaohua and Pearson, John E. and te Velthius, Suzanne G. E. and Hoffmann, Axel and Freimuth, Frank and Mokrousov, Yuri},
abstractNote = {We investigate temperature-dependent spin pumping and inverse spin Hall effects in thin Pt and Pd in contact with Permalloy. Our experiments show a decrease of the spin Hall effect with decreasing temperature, which is attributed to a temperature-dependent proximity effect. The spin Hall angle decreases from 0.086 at room temperature to 0.042 at 10 K for Pt and is nearly negligible at 10 K for Pd. By first-principle calculations, we show that the spin Hall conductivity indeed reduces by increasing the proximity-induced spin magnetic moments for both Pt and Pd. This work highlights the important role of proximity-induced magnetic ordering to spin Hall phenomena in Pt and Pd.},
doi = {10.1103/PhysRevB.91.115316},
url = {https://www.osti.gov/biblio/1357481}, journal = {Physical Review, B: Condensed Matter},
issn = {0163-1829},
number = 11,
volume = 91,
place = {United States},
year = {Thu Mar 26 00:00:00 EDT 2015},
month = {Thu Mar 26 00:00:00 EDT 2015}
}

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Cited by: 72 works
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Works referencing / citing this record:

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Enhanced spin–orbit torque via interface engineering in Pt/CoFeB/MgO heterostructures
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Anomalous spin Hall angle of a metallic ferromagnet determined by a multiterminal spin injection/detection device
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Quantitative study of spin relaxation in rubrene thin films by inverse spin Hall effect
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Temperature dependence of spin–orbit torques in Pt/Co/Pt multilayers
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Surface magnetization thermal fluctuation driven anomalous behaviour of ordinary Hall effect in Pt/YIG
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Enhancement of spin mixing conductivity in Co/Pt and Co/Ta bilayers by CuO x interfacial layer decoration
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Determining Key Spin-Orbitronic Parameters via Propagating Spin Waves
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Enhancement of spin-orbit torque by inserting CoO x layer into Co/Pt interface
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Magneto-Optical Detection of the Spin Hall Effect in Pt and W Thin Films
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