Title: Reverse-domain superconductivity in superconductor-ferromagnet hybrids: Effect of a vortex-free channel on the symmetry of I-V characteristics
Authors: Aladyshkin, A. Yu ×
Vodolazov, D. Yu
Fritzsche, J
Kramer, R. B. G
Moshchalkov, Victor #
Issue Date: Aug-2010
Publisher: Amer inst physics
Series Title: Applied physics letters vol:97 issue:5 pages:1-3
Abstract: We demonstrate experimentally that the presence of a single domain wall in an underlying ferromagnetic BaFe12O19 substrate can induce a considerable asymmetry in the current (I)-voltage (V) characteristics of a superconducting Al bridge deposited on top of the substrate. The observed diodelike effect, i.e., polarity-dependent critical current, is associated with the formation of a vortex-free channel inside the superconducting area which increases the total current flowing through the superconducting bridge without dissipation. The vortex-free region appears only for a certain sign of the injected current and for a limited range of the external magnetic field. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3474622]
ISSN: 0003-6951
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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