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Title: Low-field vortex patterns in the multiband BaFe2-xNixAs2 superconductor (x=0.1, 0.16)
Authors: Nishio, Taichiro ×
Xu, Z. A
Moshchalkov, Victor
Li, L.J #
Issue Date: Jun-2011
Publisher: Published by the American Physical Society through the American Institute of Physics
Series Title: Physical Review B, Condensed Matter and Materials Physics vol:83 issue:22 pages:1-7
Article number: 224522
Abstract: The distribution of vortices at low magnetic fields in single crystals of multiband BaFe2-xNixAs2 (x = 0.1 and x = 0.16) superconductors is studied by Bitter decoration. Highly inhomogeneous vortex patterns, including vortex stripes and vortex clusters, are observed. The origin of these inhomogeneous vortex arrays is likely to be due to strong flux pinning, as suggested by magnetization measurements performed at high fields. Alternative possible scenarios, such as type-1.5 superconductivity due to multiband effect, are also discussed.
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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