magnetic rings;
switching properties;
onion state;
vortex state;
computational micromagnetics;
D O I:
10.1016/S0304-8853(01)00709-0
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
We present the results of a study of the magnetic switching properties of arrays of narrow Co(1 0 0) epitaxial ring magnets, with outer diameters between I and 2 Am, varying inner diameters and varying film thickness. We discuss measurements and the results of numerical computations of the switching fields for the transition from the vortex state to the 'onion' state. A large dependence on the ring width and the film thickness is found. (C) 2002 Published by Elsevier Science B.V.