ac and dc current-induced motion of a 360 degrees domain wall
Name
Mascaro-2010-ac and dc current-in.pdf
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Author(s)
Mascaro, Mark D.
Ross, Caroline A.
Date Issued
December 2010
Journal
Physical review B
Publisher
American Physical Society
Citation
Mascaro, Mark, and C. Ross. “ac and dc current-induced motion of a 360° domain wall.” Physical Review B 82.21 (2010) : n. pag. ©2010 The American Physical Society
Version
Final published version
Abstract
he response of 360° [360 degrees]domain walls in narrow magnetic stripes to applied dc and ac currents, investigated by micromagnetic simulation, differs qualitatively from the response of 180° [180 degrees] domain walls. The 360° [360 degrees] domain-wall velocity scales with a dc current but is independent of an applied magnetic field along the stripe. An annihilation process occurs at a critical dc current density that varies with the applied field. When a 360° [360 degrees] wall is perturbed, it oscillates at a characteristic frequency in the gigahertz range which is tunable by the applied magnetic field, and an ac current applied at half the characteristic frequency excites a resonant response.
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/10.1103/PhysRevB.82.214411
