Field polarity dependent nucleation of superconductivity in quasi-one-dimensional magnetic templates

[en] We investigate the nucleation of superconductivity in an Al/Al(2)O(3)/Py trilayer system by electrical transport measurements. Magnetic force microscopy images taken at room temperature show that the 0.7 mu m thick Py-film form stripes of magnetic domains with alternating out-of-plane stray field. After applying a strong out of plane magnetic field H the superconductor/normal phase boundary becomes asymmetric with respect to H = 0. This lack of field polarity symmetry results from the unbalanced size distribution of domains with opposite polarity. (C) 2010 Elsevier B.V. All rights reserved.

Disciplines :

Physics

Author, co-author :

Ataklti, G. W.

Silhanek, Alejandro ; Katholieke Universiteit Leuven - KUL

Van de Vondel, J.

Gillijns, W.

Belkin, A.

Karapetrov, G.

Moshchalkov, V. V.

Language :

English

Title :

Field polarity dependent nucleation of superconductivity in quasi-one-dimensional magnetic templates

Publication date :

2010

Journal title :

Physica C. Superconductivity

ISSN :

0921-4534

eISSN :

1873-2143

Publisher :

Elsevier Science, Amsterdam, Netherlands

Special issue title :

Volume :

470

Issue :

Pages :

860-862

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 10 November 2011

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