Khan, RA orcid.org/0000-0002-2045-2237, Shepley, PM orcid.org/0000-0003-1240-593X, Hrabec, A orcid.org/0000-0002-2895-1962 et al. (4 more authors) (2016) Effect of annealing on the interfacial Dzyaloshinskii-Moriya interaction in Ta/CoFeB/MgO trilayers. Applied Physics Letters, 109 (13). 132404. ISSN 0003-6951
Abstract
The interfacial Dzyaloshinskii-Moriya interaction (DMI) has been shown to stabilize homochiral N´eel-type domain walls in thin films with perpendicular magnetic anisotropy and as a result permit them to be propagated by a spin Hall torque. In this study, we demonstrate that in Ta/Co20Fe60B20/MgO the DMI may be influenced by annealing. We find that the DMI peaks at D = 0.057 ± 0.003 mJ/m2 at an annealing temperature of 230 ◦C. DMI fields were measured using a purely field-driven creep regime domain expansion technique. The DMI field and the anisotropy field follow a similar trend as a function of annealing temperature. We infer that the behavior of the DMI and the anisotropy are related to interfacial crystal ordering and B expulsion out of the CoFeB layer as the annealing temperature is increased.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016, the Author(s). This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in Applied Physics Letters, 109, 132404 (2016), and may be found at https://doi.org/10.1063/1.4963731. Uploaded in accordance with the publisher's self-archiving policy. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) > Condensed Matter (Leeds) |
Funding Information: | Funder Grant number EU - European Union 608031 |
Depositing User: | Symplectic Publications |
Date Deposited: | 21 Sep 2016 10:02 |
Last Modified: | 12 Dec 2024 14:34 |
Published Version: | https://doi.org/10.1063/1.4963731 |
Status: | Published |
Publisher: | AIP Publishing |
Identification Number: | 10.1063/1.4963731 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:105004 |