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Título
Effect of crystalline defects on domain wall motion under field and current in nanowires with perpendicular magnetization.
Autor(es)
Assunto
Magnetism
Computational physics
Fecha de publicación
2010
Editor
American Physical Society
Citación
Phys. Rev. B 81, 134408 (2010)
Resumen
[EN]In this work, we present a micromagnetic study of a magnetic domain wall dynamics influenced by magnetic
fields and/or spin-polarized currents in systems characterized by perpendicular magnetization including crystalline
defects. The dynamics in two different systems is studied: one showing the effect of defects in the flow
regime, and the second one presenting the thermally activated depinning from a single defect. In the latter case,
the thermal depinning can be analyzed within the framework of a single energy barrier process. In such
situation, the current density can be assimilated to an applied field. We found that the energy barrier depends
linearly on the applied field and on the injected current.
URI
ISSN
2469-9950
DOI
10.1103/PhysRevB.81.134408
Versión del editor
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