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Title: Pinning induced by inter-domain wall interactions in planar magnetic nanowires

Abstract

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.

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
Materials Sciences Division
OSTI Identifier:
981339
Report Number(s):
LBNL-2965E
Journal ID: ISSN 0003-6951; APPLAB; TRN: US201012%%1314
DOE Contract Number:  
DE-AC02-05CH11231
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 96; Journal Issue: 5; Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
36; MAGNETIC FIELDS; MAGNETIZATION; MONOPOLES

Citation Formats

Hayward, T J, Bryan, M T, Fry, P W, Fundi, P M, Gibbs, M R.J., Allwood, D A, Im, M -Y, and Fischer, P. Pinning induced by inter-domain wall interactions in planar magnetic nanowires. United States: N. p., 2009. Web.
Hayward, T J, Bryan, M T, Fry, P W, Fundi, P M, Gibbs, M R.J., Allwood, D A, Im, M -Y, & Fischer, P. Pinning induced by inter-domain wall interactions in planar magnetic nanowires. United States.
Hayward, T J, Bryan, M T, Fry, P W, Fundi, P M, Gibbs, M R.J., Allwood, D A, Im, M -Y, and Fischer, P. 2009. "Pinning induced by inter-domain wall interactions in planar magnetic nanowires". United States. https://www.osti.gov/servlets/purl/981339.
@article{osti_981339,
title = {Pinning induced by inter-domain wall interactions in planar magnetic nanowires},
author = {Hayward, T J and Bryan, M T and Fry, P W and Fundi, P M and Gibbs, M R.J. and Allwood, D A and Im, M -Y and Fischer, P},
abstractNote = {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.},
doi = {},
url = {https://www.osti.gov/biblio/981339}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 5,
volume = 96,
place = {United States},
year = {Fri Oct 30 00:00:00 EDT 2009},
month = {Fri Oct 30 00:00:00 EDT 2009}
}