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Experimental observation of switching in ferromagnetic nanoscale double disks

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Huber, Michael ; Zweck, Josef ; Weiss, Dieter
Date of publication of this fulltext: 05 Aug 2009 13:57


We investigated a system of two overlapping ferromagnetic permalloy disks, called a hysteron. For sufficiently small disk diameters the hysteron contains only one vortex which is displaced off the center of the disk hosting it. By swapping the vortex from one side of the disk to the other via an in-plane magnetic field, the magnetization in the appended disk is reversed. The magnetization ...


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