Micromagnetics of twisted amorphous ribbons

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Abstract
Solutions of the micromagnetic equations for a twisted ribbon are given on the assumption of isotropic magnetostriction and lack of crystalline anisotropy. This is the case of amorphous magnetic materials. Both exchange forces and tension-induced anisotropy are considered together with the torsion effects, showing the small influence of the exchange term in most practical cases. Results agree with remanence and Matteucci-effect measurements in annealed samples of Metglas 2826.

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