Title: Vortex dynamics in superconductors with a lattice of magnetic dots
Authors: Teniers, Gerd ×
Lange, Martin
Moshchalkov, Victor #
Issue Date: 2002
Series Title: Physica. C, Superconductivity vol:369 issue:1-4 pages:268-272
Conference: date:Katholieke Univ Leuven, Vaste Stof Fys & Magnetisme Lab, B-3001 Louvain, Belgium
Abstract: We report on molecular dynamics simulations of vortex patterns in the presence of a periodic array of ferromagnetic dots with out-of-plane magnetization. Dots and vortices show the interesting behaviour of having attractive or repulsive interaction depending on the mutual orientation of the flux of the vortices and the magnetic moment of the dots. This microscopic property strongly influences the simulated magnetization loops and critical force curves, Different configurations of the magnetization direction of the dot array have been systematically studied, For all dots magnetized in one direction the experimentally observed asymmetric magnetization loops are clearly reproduced. We also investigate random distributions of up and down magnetized dots, These simulations show that new vortex phases can be stabilized by the magnetic dot array. (C) 2001 Elsevier Science B.V. All rights reserved.
ISSN: 0921-4534
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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