Article (Scientific journals)
Morphology of Flux Avalanches in Patterned Superconducting Films
Zadorosny, R; Colauto, F; Motta, M et al.
2013In Journal of Superconductivity and Novel Magnetism, 26
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Keywords :
thermomagnetic instabilities; flux avalanches
Abstract :
[en] It is well known that under certain circumstances, magnetic fields applied perpendicularly to the plane of superconducting films can trigger flux avalanches. In such cases the penetration has a tree-like profile. However, in samples where a regular array of antidots, ADs, is present, the avalanches follow the rows of ADs as if they were guiding lines for the abrupt penetration. In this work we used the magneto-optical imaging technique to study the morphology of flux avalanches in two Nb films with a square lattice of square ADs, each one with a different lateral size, and a plain film for reference. We show that the morphology of the flux avalanches is greatly influenced by the size of the interstitial region.
Disciplines :
Physics
Author, co-author :
Zadorosny, R;  Univers Estadual Paulista-UNESP, Brazil
Colauto, F;  Universidade Federal de São Carlos, Brazil
Motta, M;  Universidade Federal de São Carlos, Brazil
Johansen, T.H.;  University of Oslo - UiO
Dinner, R;  Cambridge University, UK
Blamire, M.;  Cambridge University, UK
Ataklti, G.W.;  Katholieke Universiteit Leuven - KUL
Moshchalkov, V.V.;  Katholieke Universiteit Leuven - KUL
Silhanek, Alejandro  ;  Université de Liège - ULiège > Département de physique > Physique de la matière condensée
Ortiz, W.A.;  Universidade Federal de São Carlos, Brazil
Language :
English
Title :
Morphology of Flux Avalanches in Patterned Superconducting Films
Publication date :
2013
Journal title :
Journal of Superconductivity and Novel Magnetism
ISSN :
1557-1939
eISSN :
1557-1947
Publisher :
Springer Science & Business Media B.V.
Volume :
26
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 11 February 2013

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