DocumentCode
906002
Title
Double Vortex Interaction in Micron-Sized Elliptical Ni 
Fe 
Elements Studied by Real-Ti
Author
Hong, B. ; Hayward, T.J. ; Barnes, C.H.W. ; Jeong, J.-R.
Author_Institution
Cavendish Lab., Univ. of Cambridge, Cambridge
Volume
45
Issue
6
fYear
2009
fDate
6/1/2009 12:00:00 AM
Firstpage
2511
Lastpage
2514
Abstract
We have used full-field optical Kerr microscopy to study the double-vortex interaction in epitaxially grown micron-sized elliptical ferromagnetic thin films by observing magnetization-switching behavior. Both micromagnetic simulation and experimental measurements were carried out to determine the origin of the observed magnetization reversal process. It was found that the direction in which each vortex core rotates largely depends on the edge spins that are not saturated by an externally applied magnetic field. It was also found that the switching fields depend significantly on the relative direction in which the vortex cores rotate.
Keywords
Kerr magneto-optical effect; epitaxial growth; ferromagnetic materials; iron alloys; magnetic switching; magnetic thin films; magnetisation reversal; metallic thin films; micromagnetics; molecular beam epitaxial growth; nickel alloys; Ni80Fe20; double vortex interaction; elliptical ferromagnetic thin films; epitaxial growth; full-field optical Kerr microscopy; magnetization reversal; magnetization-switching behavior; micromagnetic simulation; micron-sized elliptical elements; molecular beam epitaxial growth; vortex cores; Ferromagnetic patterns; magnetic domain imaging; magnetic vortex; magnetization reversal;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.2009.2018680
Filename
4957725
Link To Document