Title: Asymmetric pinning in superconductors with interpenetrating arrays of weak and strong pinning centers
Authors: Zhu, Bei Yi ×
Zhao, BR
Zhao, ZX
Van Look, Lieve
Moshchalkov, Victor #
Issue Date: 2000
Series Title: Physica. C, Superconductivity vol:341 issue:Part 2 pages:1143-1144
Conference: date:Chinese Acad Sci, Natl Lab Superconduct, Inst Phys, Beijing 100080, Peoples R China; Chinese Acad Sci, Ctr Condensed Matter Phys, Beijing 100080, Peoples R China; Katholieke Univ Leuven, Vaste Stof Fys Magnetisme Lab, B-3001 Louvain, Belgium
Abstract: Molecular dynamics simulations of the current-voltage characteristics, V(I), have been performed for regular pinning arrays consisting of two interpenetrating triangular lattices of weak and strong pinning centers. In this case, an applied Lorentz force F-L provides the depinning force which is directed either from weak to strong pinning site or vice versa, depending on the polarity of F-L. This leads to a pronounced asymmetry of the critical driving force F-L(c) needed for the vortex depinning, revealed in our numerical simulations for the vortex lattice originally coinciding with the array of strong pinning centers. The dependence of the F-L(c) asymmetry on the shift of the two pinning sublattices is also investigated.
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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