Enhanced pinning and proliferation of matching effects in a superconducting film with a Penrose array of magnetic dots

Silhanek, Alejandro; Gillijns, W.; Moshchalkov, V. V.; Zhu, B. Y.; Moonens, J.; Leunissen, L. H. A.

doi:10.1063/1.2361172

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Article (Scientific journals)

Enhanced pinning and proliferation of matching effects in a superconducting film with a Penrose array of magnetic dots

Silhanek, Alejandro; Gillijns, W.; Moshchalkov, V. V. et al.

2006 • In Applied Physics Letters, 89 (15)

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https://hdl.handle.net/2268/102571

DOI
10.1063/1.2361172

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Keywords :

superconductivity; quasicrystals

Abstract :

[en] The vortex dynamics in superconducting films deposited on top of a fivefold Penrose array of magnetic dots is studied by means of transport measurements. The authors show that in the low pinning regime (demagnetized dots) a few periodic and aperiodic matching features coexist. In the strong pinning regime (magnetized dots) a richer structure of unforeseen periodic and aperiodic vortex patterns appear, giving rise to a clear enhancement of the critical current in a broader field range. Possible stable vortex configurations are determined by molecular dynamics simulations. (c) 2006 American Institute of Physics.

Disciplines :

Physics

Author, co-author :

Silhanek, Alejandro ; Katholieke Universiteit Leuven - KUL

Gillijns, W.

Moshchalkov, V. V.

Zhu, B. Y.

Moonens, J.

Leunissen, L. H. A.

Language :

English

Title :

Enhanced pinning and proliferation of matching effects in a superconducting film with a Penrose array of magnetic dots

Publication date :

2006

Journal title :

Applied Physics Letters

ISSN :

0003-6951

eISSN :

1077-3118

Publisher :

American Institute of Physics, Melville, United States - New York

Volume :

Issue :

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 11 November 2011

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