360º Domain Walls have been reported in the reversal processes of thin
films as a result of pinning defects . Recently they have also been
observed during the reversal process of closed structures even without the
presence of any apparent defects . In terms of their application to
technological devices, the 360º Domain Walls have been proposed to be used
in the fabrication of as magnetic random access memory (MRAM) , spin
wave generators , magnetic memory recording devices  and magnetic
In this talk I will introduce the main micromagnetic properties of a 360º
Domain Walls and their role in the switching of nanorings driven by
azimuthal fields. A short study on the resilience of this reversal
mechanism under temperature will also be shown. Moreover, the results of a
proposed magnetic memory recording devices based on 360º Domain Walls will
be presented. Finally, initial results on the localized injection of 360º
Domain Walls into stripes will be outlined.
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 P. E. Roy, T. Trypiniotis, and C. H. W. Barnes. Micromagnetic
simulations of spin-wave normal modes and the resonant field-driven
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Feb 07, 2013
02:30 PM to
Mott Seminar Room
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