Title: Giant anisotropy of the resistance induced by magnetic domains in superconductor/ferromagnet hybrids
Authors: Aladyshkin, A. Yu ×
Fritzsche, J
Moshchalkov, Victor #
Issue Date: Oct-2010
Publisher: Elsevier science bv
Series Title: Physica c-superconductivity and its applications vol:470 issue:19 pages:883-885
Abstract: We experimentally studied the magnetoresistance of a superconducting Al microbridge fabricated on top of a ferromagnetic BaFe12O19 single crystal. Due to the presence of a one-dimensional domain structure in the ferromagnetic substrate, the superconducting critical temperature reaches its maximal value at the compensation field, vertical bar H vertical bar similar or equal to B-0, when superconductivity nucleates above magnetic domains of opposite polarity with respect to the applied magnetic field H (so-called reverse-domain superconductivity, B-0 being the amplitude of the z-component of the nonuniform magnetic field). Such localized superconductivity makes it possible to transfer superconducting currents without dissipation only along the magnetic domains, leading to a pronounced anisotropy of the resistance of this system at low temperatures. (C) 2010 Elsevier B.V. All rights reserved.
ISSN: 0921-4534
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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