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Magnetic-dipole induced appearance of vortices in a bilayered superconductor/soft-magnet heterostructure

S. V. Yampolskii·G. I. Yampolskaya·H. Rauh
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Abstract

The penetration of the magnetic field of an infinitesimal magnetic dipole into a bilayered type-II superconductor/soft-magnet heterostructure is studied on the basis of the classical London approach. The critical values of the dipole moment for the first appearance of a single magnetic vortex and, respectively, a magnetic vortex-antivortex pair in the superconductor constituent are obtained, when the magnetic dipole faces the superconductor or the soft-magnet constituent. This reveals that the soft-magnet constituent inhibits penetration of vortices into the superconductor constituent, when the dipole faces the soft-magnet constituent.

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S. V. Yampolskii, G. I. Yampolskaya, H. Rauh. 2006-12-04. Magnetic-dipole induced appearance of vortices in a bilayered superconductor/soft-magnet heterostructure. https://doi.org/10.1016/j.physc.2007.04.049

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