Crossover between magnetic vortex attraction and repulsion in thin films of layered superconductors
- 10 March 2009
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 79 (9) , 094510
Abstract
In thin films of anisotropic superconductors, the intervortex interaction may be strongly modified because of the interplay between the long-ranged repulsion caused by an extremely slow decay of the supercurrent induced by a single vortex line (Pearl’s effect) and the attraction caused by the tilt of the vortex lines with respect to the anisotropy axes. We present a theoretical analysis and Lorentz microscopy experimental data for high-temperature superconducting cuprates which provide evidence of such interplay. Moreover we report on a theoretical prediction of a very special type of the vortex arrangement—the formation of the vortex molecules.Keywords
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