Pinning induced by inter-domain wall interactions in planar magnetic nanowires [electronic resource].

Published: Berkeley, Calif. : Lawrence Berkeley National Laboratory, 2009.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description: 9 : digital, PDF file
Additional Creators: Lawrence Berkeley National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information

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Summary

We have investigated pinning potentials created by inter-domain wall magnetostatic interactions in planar magnetic nanowires. We show that these potentials can take the form of an energy barrier or an energy well depending on the walls' relative monopole moments, and that the applied magnetic fields required to overcome these potentials are significant. Both transverse and vortex wall pairs are investigated and it is found that transverse walls interact more strongly due to dipolar coupling between their magnetization structures. Simple analytical models which allow the effects of inter-domain wall interactions to be estimated are also presented.

Report Numbers

E 1.99:lbnl-2965e
lbnl-2965e

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Note

Published through SciTech Connect.
10/30/2009.
"lbnl-2965e"
Applied Physics Letters 96 5 ISSN 0003-6951; APPLAB FT
Fischer, P.; Gibbs, M.R.J.; Bryan, M.T.; Hayward, T.J.; Fry, P.W.; Im, M.-Y.; Allwood, D.A.; Fundi, P.M.
Materials Sciences Division

Funding Information

DE-AC02-05CH11231

View MARC record | catkey: 14443963