Title: Microscopic picture of the critical state in a superconductor with a periodic array of antidots
Authors: Silhanek, A. V ×
Gutierrez Royo, Joffre
Kramer, R. B. G
Weldeslassie, Ataklti
Van de Vondel, Joris
Moshchalkov, Victor #
Issue Date: 28-Jan-2011
Publisher: Published by the American Physical Society through the American Institute of Physics
Series Title: Physical Review B, Condensed Matter and Materials Physics vol:83 issue:2 pages:1-4
Article number: 024509
Abstract: By using scanning Hall microscopy we visualize the progressive formation of the critical state with individual vortex resolution in a Pb thin film with a periodic pinning array. Slightly above the first penetration field, we directly observe a terraced critical state as proposed theoretically by Cooley and Grishin [Phys. Rev. Lett. 74, 2788 (1995)]. However, at higher fields, the flux front tends to disorder and the classical Bean profile is restored. This study allows us to establish a clear link between the widely used integrated response measurements in the superconducting state and the nanoscale landscape defined by individual vortices.
ISSN: 1098-0121
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
Physics and Astronomy - miscellaneous
Mechanical Engineering Technology TC, Campus Group T Leuven
Technologiecluster Werktuigkundige Industriƫle Ingenieurstechnieken
× corresponding author
# (joint) last author

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