Exquisitely balanced magnetic switching in microscopic ferromagnetic rings

Initially, the switching behaviours of single layer NiFe rings are investigated. It is demonstrated that their magnetic switching is a competition between local energy barriers and the total energy of the rings’ magnetic states. In 5<i>μ</i>m diameter NiFe rings the vortex state formed d...

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Bibliographic Details
Main Author: Hayward, T. J.
Published: University of Cambridge 2007
Subjects:
Online Access:http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.603899