Article (Scientific journals)
Formation of Stripelike Flux Patterns Obtained by Freezing Kinematic Vortices in a Superconducting Pb Film
Silhanek, Alejandro; Milosevic, M. V.; Kramer, R. B. G. et al.
2010In Physical Review Letters, 104 (1)
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Keywords :
superconductivity
Abstract :
[en] We demonstrate experimentally and theoretically that the dissipative state of superconducting samples with a periodic array of holes at high current densities consists of flux rivers resulting from a short-range attractive interaction between vortices. This dynamically induced vortex-vortex attraction results from the migration of quasiparticles out of the vortex core (kinematic vortices). We have directly visualized the formation of vortex chains by scanning Hall probe microscopy after freezing the dynamic state by a field cooling procedure at a constant bias current. Similar experiments carried out in a sample without holes show no hint of flux river formation. We shed light on this nonequilibrium phenomena modeled by time-dependent Ginzburg-Landau simulations.
Disciplines :
Physics
Author, co-author :
Silhanek, Alejandro  ;  Katholieke Universiteit Leuven - KUL
Milosevic, M. V.
Kramer, R. B. G.
Berdiyorov, G. R.
Van de Vondel, J.
Luccas, R. F.
Puig, T.
Peeters, F. M.
Moshchalkov, V. V.
Language :
English
Title :
Formation of Stripelike Flux Patterns Obtained by Freezing Kinematic Vortices in a Superconducting Pb Film
Publication date :
2010
Journal title :
Physical Review Letters
ISSN :
0031-9007
eISSN :
1079-7114
Publisher :
American Physical Society, Ridge, United States - New York
Volume :
104
Issue :
1
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 08 November 2011

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