Spin Hall torque magnetometry of Dzyaloshinskii domain walls
Name
PhysRevB.90.184427.pdf
Size
1.65 MB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Emori, Satoru
Martinez, Eduardo
Lee, Kyung-Jin
Lee, Hyun-Woo
Bauer, Uwe
Ahn, Sung-Min
Agrawal, Parnika
Bono, David C.
Beach, Geoffrey Stephen
Date Issued
November 2014
Journal
Physical Review B
Publisher
American Physical Society
Citation
Emori, Satoru, et al. "Spin Hall torque magnetometry of Dzyaloshinskii domain walls." Phys. Rev. B 90, 184427 (November 2014). © 2014 American Physical Society
Version
Final published version
Abstract
Current-induced domain wall motion in the presence of the Dzyaloshinskii-Moriya interaction (DMI) is experimentally and theoretically investigated in heavy-metal/ferromagnet bilayers. The angular dependence of the current-induced torque and the magnetization structure of Dzyaloshinskii domain walls are described and quantified simultaneously in the presence of in-plane fields. We show that the DMI strength depends strongly on the heavy metal, varying by a factor of 20 between Ta and Pa, and that strong DMI leads to wall distortions not seen in conventional materials. These findings provide essential insights for understanding and exploiting chiral magnetism for emerging spintronics applications.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevB.90.184427
