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19 April 2024

» arxiv » cond-mat/0607043

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Interaction between superconducting vortices and Bloch wall in ferrite garnet film
J. I. Vestgarden ; D.V. Shantsev ; A. A. F. Olsen ; Y. M. Galperin ; V. V. Yurchenko ; P. E. Goa ; T. H. Johansen ;
Date:	3 Jul 2006
Subject:	Superconductivity
Abstract:	Interaction between a Bloch wall in a ferrite-garnet film and a vortex in a superconductor is analyzed in the London approximation. Equilibrium distribution of vortices formed around the Bloch wall is calculated. The results agree quantitatively with magneto-optical experiment where an in-plane magnetized ferrite-garnet film placed on top of NbSe2 superconductor allows observation of individual vortices. In particular, our model can reproduce a counter-intuitive attraction observed between vortices and a Bloch wall having the opposite polarity. It is explained by magnetic charges appearing due to discontinuity of the in-plane magnetization across the wall.
Source:	arXiv, cond-mat/0607043
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