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Supercurrent induced domain wall motion

By P. D. Sacramento, L. C. Fernandes Silva, G. S. Nunes, M. A. N. Araujo and V. R. Vieira


We study the dynamics of a magnetic domain wall, inserted in, or juxtaposed to, a conventional superconductor, via the passage of a spin polarized current through a FSF junction. Solving the Landau-Lifshitz-Gilbert equation of motion for the magnetic moments we calculate the velocity of the domain wall and compare it with the case of a FNF junction. We find that in several regimes the domain wall velocity is larger when it is driven by a supercurrent.Comment: 10 pages, 8 figure

Topics: Condensed Matter - Superconductivity
Publisher: 'American Physical Society (APS)'
Year: 2011
DOI identifier: 10.1103/PhysRevB.83.054403
OAI identifier:

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