Article (Scientific journals)
Microscopic picture of the critical state in a superconductor with a periodic array of antidots
Silhanek, Alejandro; Gutierrez, J.; Kramer, R. B. G. et al.
2011In Physical Review. B, Condensed Matter, 83 (2)
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Keywords :
superconductivity
Abstract :
[en] By using scanning Hall microscopy we visualize the progressive formation of the critical state with individual vortex resolution in a Pb thin film with a periodic pinning array. Slightly above the first penetration field, we directly observe a terraced critical state as proposed theoretically by Cooley and Grishin [Phys. Rev. Lett. 74, 2788 (1995)]. However, at higher fields, the flux front tends to disorder and the classical Bean profile is restored. This study allows us to establish a clear link between the widely used integrated response measurements in the superconducting state and the nanoscale landscape defined by individual vortices.
Disciplines :
Physics
Author, co-author :
Silhanek, Alejandro  ;  Katholieke Universiteit Leuven - KUL > Physics
Gutierrez, J.
Kramer, R. B. G.
Ataklti, G. W.
de Vondel, J Van
Moshchalkov, V. V.
Language :
English
Title :
Microscopic picture of the critical state in a superconductor with a periodic array of antidots
Publication date :
2011
Journal title :
Physical Review. B, Condensed Matter
ISSN :
0163-1829
eISSN :
1095-3795
Publisher :
American Institute of Physics, New York, United States - New York
Volume :
83
Issue :
2
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 04 November 2011

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