Title: Determination of the magnetic penetration depth in a superconducting Pb film
Authors: Brisbois, J ×
Raes, B
Van de Vondel, Joris
Moshchalkov, Victor
Silhanek, A. V #
Issue Date: 2014
Publisher: American Institute of Physics
Series Title: Journal of Applied Physics vol:115 issue:10 pages:103906-103906
Abstract: By means of scanning Hall probe microscopy technique, we accurately map the magnetic field
pattern produced by Meissner screening currents in a thin superconducting Pb stripe. The obtained
field profile allows us to quantitatively estimate the Pearl length K without the need of
pre-calibrating the Hall sensor. This fact contrasts with the information acquired through the spatial
field dependence of an individual flux quantum where the scanning height and the magnetic
penetration depth combine in a single inseparable parameter. The derived London penetration
depth kL coincides with the values previously reported for bulk Pb once the kinetic suppression
of the order parameter is properly taken into account.
ISSN: 0021-8979
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Physics and Astronomy - miscellaneous
Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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