Article (Scientific journals)
Vortex Dynamics in a Superconducting Film with a Kagome and a Honeycomb Pinning Landscape
Cuppens, J.; Ataklti, G. W.; Gillijns, W. et al.
2011In Journal of Superconductivity and Novel Magnetism, 24 (1-2), p. 7-11
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Keywords :
Periodic pinning; Electrical transport properties
Abstract :
[en] The vortex dynamics in a superconducting thin Al film with a periodic Honeycomb or Kagome array of antidots has been investigated by electrical transport measurements. The large values of the superconducting coherence length and penetration depth of the Al films guarantee a maximum of one flux quantum trapped per pinning site. This allows us to directly compare the experimental results with previous theoretical investigations based on molecular dynamics simulations. For the Kagome lattice, two submatching features not anticipated theoretically at H/H (1)=1/3 and 2/3, where H (1) is the field at which the number of vortices coincides with the number of pinning sites, are observed. Possible corresponding stable vortex patterns are suggested. For the Honeycomb pinning landscape, the commensurability effects are in agreement with the theoretical expectations. A preliminary analysis of the vortex mobility in this lattice shows the presence of a weak vortex guidance.
Disciplines :
Physics
Author, co-author :
Cuppens, J.
Ataklti, G. W.
Gillijns, W.
Van de Vondel, J.
Moshchalkov, V. V.
Silhanek, Alejandro  ;  Katholieke Universiteit Leuven - KUL > Physics
Language :
English
Title :
Vortex Dynamics in a Superconducting Film with a Kagome and a Honeycomb Pinning Landscape
Publication date :
2011
Journal title :
Journal of Superconductivity and Novel Magnetism
ISSN :
1557-1939
eISSN :
1557-1947
Publisher :
Springer Science & Business Media B.V.
Volume :
24
Issue :
1-2
Pages :
7-11
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 08 November 2011

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