Title: Depinning of caged interstitial vortices in superconducting alpha-WGe films with an antidot lattice
Authors: Rosseel, E ×
Van Bael, Margriet
Baert, M
Jonckheere, R
Moshchalkov, Victor
Bruynseraede, Yvan #
Issue Date: Feb-1996
Publisher: Published for the American Physical Society by the American Institute of Physics
Series Title: Physical Review B, Condensed Matter vol:53 issue:6 pages:R2983-R2986
Abstract: The magnetoresistance, critical currents, and voltage-current (V-I) characteristics have been studied in superconducting a-WGe films with a square lattice of cylindrical microholes (antidots). Besides a strong enhancement of the critical current caused by matching of the flux lines with the antidot lattice having a period d, two different dissipative regimes have been observed giving rise to a crossover in the [log(V)-log(I)] characteristics for magnetic fields above the first matching field B-1=B-phi=Phi(0)d(-2). This V-I behavior is caused by the coexistence of a weakly pinned interstitial vortex fluid and a strongly pinned vortex lattice at the antidots.
ISSN: 0163-1829
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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