Topological textures in a ferromagnet-superconductor bilayer

Topological textures in a ferromagnet-superconductor bilayer

The homogeneous state of a ferromagnet-superconductor bilayer (FSB) with the magnetization perpendicular to the layer can be unstable with respect to the formation of vortices in the superconducting layer. The developing topological instability in the FSB leads to formation of domains in which the d...

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Veröffentlicht in:Physical review letters 2002-01, Vol.88 (1), p.017001-017001, Article 017001
Hauptverfasser: Erdin, Serkan, Lyuksyutov, Igor F, Pokrovsky, Valery L, Vinokur, Valeri M
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Sprache:eng
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CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
INSTABILITY
MAGNETIZATION
SUPERCONDUCTING FILMS
VORTICES
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container_title Physical review letters
container_volume 88
creator Erdin, Serkan
Lyuksyutov, Igor F
Pokrovsky, Valery L
Vinokur, Valeri M
description The homogeneous state of a ferromagnet-superconductor bilayer (FSB) with the magnetization perpendicular to the layer can be unstable with respect to the formation of vortices in the superconducting layer. The developing topological instability in the FSB leads to formation of domains in which the direction of the magnetization in the magnetic film and the direction of vorticity in the superconducting film alternate together. This is a new, combined topological structure, which does not appear in isolated layers. Equilibrium domains can appear in the FSB even if the single magnetic film is in a monodomain state.
doi_str_mv 10.1103/PhysRevLett.88.017001
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subjects CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
INSTABILITY
MAGNETIZATION
SUPERCONDUCTING FILMS
VORTICES
title Topological textures in a ferromagnet-superconductor bilayer
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