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Magnetostatic bias in multilayer microwires: theory and experiments

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arxiv 1106.2366 v1 pith:2OB6TSZH submitted 2011-06-13 cond-mat.mes-hall cond-mat.mtrl-sci

Magnetostatic bias in multilayer microwires: theory and experiments

J. Escrig , S. Allende , D. Altbir , M. Bahiana , J. Torrejon , G. Badini , M. Vazquez This is my paper
classification cond-mat.mes-hall cond-mat.mtrl-sci
keywords magnetostaticmagneticlayersbiascurveshysteresisinteractioninvestigated
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The hysteresis curves of multilayer microwires consisting of a soft magnetic nucleus, intermediate non-magnetic layers, and an external hard magnetic layer are investigated. The magnetostatic interaction between magnetic layers is proved to give rise to an antiferromagnetic-like coupling resulting in a magnetostatic bias in the hysteresis curves of the soft nucleus. This magnetostatic biasing effect is investigated in terms of the microwire geometry. The experimental results are interpreted considering an analytical model taking into account the magnetostatic interaction between the magnetic layers.

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