Enhanced current-induced domain wall motion by tuning perpendicular magnetic anisotropy
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Beach_Enhanced current.pdf
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Author(s)
Emori, Satoru
Beach, Geoffrey Stephen
Date Issued
March 2011
Journal
Applied Physics Letters
Publisher
American Institute of Physics (AIP)
Citation
Emori, Satoru, and Geoffrey S. D. Beach. Enhanced Current-induced Domain Wall Motion by Tuning Perpendicular Magnetic Anisotropy. Applied Physics Letters 98, no. 13 (2011): © 2011 American Institute of Physics
Version
Final published version
Abstract
The effect of perpendicular magnetic anisotropy (PMA) on current-induced domain wall (DW) motion is investigated by micromagnetic simulations. The critical current density J[subscript C] to drive DWs into periodic transformation and continuous motion by adiabatic spin transfer torque decreases with increasing PMA. Also, with optimized PMA that almost exactly compensates the demagnetizing field, the adiabatic displacement of DWs driven by currents less than J[subscript C] is strongly enhanced. Since PMA can be controlled easily in magnetic multilayer films, this technique of enhancing current-induced DW motion may be practical for device 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.
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DOI of Published Version
https://doi.org/10.1063/1.3570652
