Flux flow anisotropy in superconducting films with a rectangular array of holes

M.S. Welling; R.J. Wijngaarden; C.M. Aegerter; R. Wordenweber; P. Lahl

doi:10.1016/j.physc.2003.11.026

Flux flow anisotropy in superconducting films with a rectangular array of holes

M.S. Welling
, R.J. Wijngaarden
, C.M. Aegerter
, R. Wordenweber
, P. Lahl

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Abstract

We present a study of the flux penetration in YBa2Cu3O7−x thin films with a rectangular array of holes (anti-dots), visualizing the magnetic flux density using an advanced magneto-optical technique. Flux penetration patterns are explained by a simple model based on the channeling of vortices along rows of holes. In simulations this was found to lead to a large anisotropy ∼60 of the critical current. However, our experimental anisotropy of 1.30(5) is much smaller. We discuss possible reasons for this discrepancy.

Original language	English
Pages (from-to)	410-414
Number of pages	5
Journal	Physica C. Superconductivity and its Applications
Volume	404
Issue number	1-4
Early online date	27 Feb 2004
DOIs	https://doi.org/10.1016/j.physc.2003.11.026
Publication status	Published - 1 May 2004

Bibliographical note

Part of special issue: Proceedings of the Third European Conference on Vortex Matter in Superconductors at Extreme Scales and Conditions. Edited by V.V. Moshchalkov, E.H. Brandt and A.S. Alexandrov

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title = "Flux flow anisotropy in superconducting films with a rectangular array of holes",

abstract = "We present a study of the flux penetration in YBa2Cu3O7−x thin films with a rectangular array of holes (anti-dots), visualizing the magnetic flux density using an advanced magneto-optical technique. Flux penetration patterns are explained by a simple model based on the channeling of vortices along rows of holes. In simulations this was found to lead to a large anisotropy ∼60 of the critical current. However, our experimental anisotropy of 1.30(5) is much smaller. We discuss possible reasons for this discrepancy.",

author = "M.S. Welling and R.J. Wijngaarden and C.M. Aegerter and R. Wordenweber and P. Lahl",

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AU - Welling, M.S.

AU - Wijngaarden, R.J.

AU - Aegerter, C.M.

AU - Wordenweber, R.

AU - Lahl, P.

N1 - Part of special issue: Proceedings of the Third European Conference on Vortex Matter in Superconductors at Extreme Scales and Conditions. Edited by V.V. Moshchalkov, E.H. Brandt and A.S. Alexandrov

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Y1 - 2004/5/1

N2 - We present a study of the flux penetration in YBa2Cu3O7−x thin films with a rectangular array of holes (anti-dots), visualizing the magnetic flux density using an advanced magneto-optical technique. Flux penetration patterns are explained by a simple model based on the channeling of vortices along rows of holes. In simulations this was found to lead to a large anisotropy ∼60 of the critical current. However, our experimental anisotropy of 1.30(5) is much smaller. We discuss possible reasons for this discrepancy.

AB - We present a study of the flux penetration in YBa2Cu3O7−x thin films with a rectangular array of holes (anti-dots), visualizing the magnetic flux density using an advanced magneto-optical technique. Flux penetration patterns are explained by a simple model based on the channeling of vortices along rows of holes. In simulations this was found to lead to a large anisotropy ∼60 of the critical current. However, our experimental anisotropy of 1.30(5) is much smaller. We discuss possible reasons for this discrepancy.

U2 - 10.1016/j.physc.2003.11.026

DO - 10.1016/j.physc.2003.11.026

M3 - Article

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EP - 414

JO - Physica C. Superconductivity and its Applications

JF - Physica C. Superconductivity and its Applications

IS - 1-4

ER -

Flux flow anisotropy in superconducting films with a rectangular array of holes

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