Title: Vortex avalanches in a Pb film with a square antidot array
Authors: Hebert, S ×
Van Look, Lieve
Weckhuysen, L
Moshchalkov, Victor #
Issue Date: 2003
Series Title: Physical review. B, Condensed matter and materials physics vol:67 issue:22
Conference: date:Katholieke Univ Leuven, Lab Vaste Stoffys Magnetisma, B-3001 Louvain, Belgium
Abstract: We have performed magnetization measurements on a Pb thin film perforated by a square array of antidots in a broad temperature range. For temperatures below 6 K, we observe magnetization jumps at low fields. In the film with the antidot lattice, the region in the field-temperature plane, where the jumps are observed, is substantially enlarged but the relative jump size is smaller compared to a reference film without any nanostructuring. Also, the width of the magnetization loops for the perforated film is much smaller than that for the plain film at very low temperatures. These results can be understood by taking into account the existence of a multiterrace critical state induced by the antidot array. The size distributions of the magnetization jumps do not follow the power-law decay expected in the case of self-organized criticality.
ISSN: 1098-0121
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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