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Title: Domain wall modulated superconductivity in Nb/Y3Fe5O12 hybrids
Authors: Yang, Zhaorong ×
Moshchalkov, Victor #
Issue Date: Apr-2011
Publisher: American Institute of Physics
Series Title: Journal of Applied Physics vol:109 issue:8 pages:1-3
Article number: 083908
Abstract: In superconductor/ferromagnet hybrids, the stray field and inhomogeneous exchange field coming from magnetic domain walls have opposite influence on the superconductivity if the ferromagnet displays in-plane anisotropy. In this paper, we investigate modulation of superconductivity by the stray field of Bloch walls in Nb/Y3Fe5O12 hybrids where the proximity effect is excluded. By applying in-plane magnetic field, we show that the resistance as a function of magnetic field displays two dips precisely at the saturation field H-s of Y3Fe5O12. The superconducting transition temperature T-c at H-s is higher than that at lower fields, suggesting the suppression of superconductivity by the stray fields of Bloch walls. By effective controlling of the domain walls, the superconductivity can be switched either on or off. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3572270]
ISSN: 0021-8979
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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