Tailoring the vortex core in confined magnetic nanostructures

Tailoring the vortex core in confined magnetic nanostructures

We present a study of vortex formation in interface biased nano-sized disk and square nanoelements of Fe and Py TM . For small lateral dimensions, the circular nanoelements have smaller vortex core diameter than square nanoelements with equal top surface area. For surface area ranging from 1900 nm 2...

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Veröffentlicht in:Journal of applied physics 2012-04, Vol.111 (7), p.07D116-07D116-3
Hauptverfasser: Moura, Thiago R. S., Oliveira, Felipe F., Carriço, A. S., Dantas, Ana L., Rebouças, G. O. G.
Format: Artikel
Sprache:eng
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Zusammenfassung:We present a study of vortex formation in interface biased nano-sized disk and square nanoelements of Fe and Py TM . For small lateral dimensions, the circular nanoelements have smaller vortex core diameter than square nanoelements with equal top surface area. For surface area ranging from 1900 nm 2 to 6700     nm 2 , the vortex core diameter of 30nm thick Fe ( Py TM ) nanoelements varies from 32nm (36nm) to 36nm (48nm). Interface effects are stronger for Py TM nanoelements.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.3675989