May 2015
Intermediate to advanced
870 pages
30h 34m
English
M. Vázquez; A. Jiménez; R. Pérez del Real Instituto de Ciencia de Materiales de Madrid, Madrid, Spain
Amorphous microwires with high positive magnetostriction show strong uniaxial magnetic anisotropy arising from enhanced magnetoelastic and geometrically intrinsic shape anisotropies. Their magnetization reversal under a homogeneous magnetic field proceeds by the depinning and propagation of a single domain wall, resulting in bistable square-shaped hysteresis loops. In a first section, this chapter deals with the spontaneous formation of the closure domain structure at the ends of the microwire from which that single domain wall depins. ...
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