Magnetic‐field‐induced damage in a superconducting YBa2Cu3O7−x film

P. Brüll; D. Kirchgässner; P. Leiderer; P. Berberich; H. Kinder

doi:10.1002/andp.19925040402

Magnetic‐field‐induced damage in a superconducting YBa₂Cu₃O_7−x film

P. Brüll, D. Kirchgässner, P. Leiderer, P. Berberich, H. Kinder

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

During investigations of the magnetic flux dynamics in thin superconducting YBa₂Cu₃O_7−x films we have observed the spontaneous formation of a damage in the film, apparently induced by the applied magnetic field of 0.1 T. The damage developed within less than 40 ms (the time resolution of the experiment) and showed up in the magnetiooptically recorded image of the flux above the sample as a path for massive flux penetration. A subsequent analysis revealed a 1 μm wide gap in the YBa₂Cu₃O_7−x film which had developed over a major portion of the 1 · 1 cm² sample. It is suggested that the film locally melted as a result of an instability of the superconductor in the critical state.

Original language	English
Pages (from-to)	243-247
Number of pages	5
Journal	Annalen der Physik
Volume	504
Issue number	4
DOIs	https://doi.org/10.1002/andp.19925040402
State	Published - 1992
Externally published	Yes

Keywords

HTc
Instability
Magnetooptic

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title = "Magnetic‐field‐induced damage in a superconducting YBa2Cu3O7−x film",

abstract = "During investigations of the magnetic flux dynamics in thin superconducting YBa2Cu3O7−x films we have observed the spontaneous formation of a damage in the film, apparently induced by the applied magnetic field of 0.1 T. The damage developed within less than 40 ms (the time resolution of the experiment) and showed up in the magnetiooptically recorded image of the flux above the sample as a path for massive flux penetration. A subsequent analysis revealed a 1 μm wide gap in the YBa2Cu3O7−x film which had developed over a major portion of the 1 · 1 cm2 sample. It is suggested that the film locally melted as a result of an instability of the superconductor in the critical state.",

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year = "1992",

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T1 - Magnetic‐field‐induced damage in a superconducting YBa2Cu3O7−x film

AU - Brüll, P.

AU - Kirchgässner, D.

AU - Leiderer, P.

AU - Berberich, P.

AU - Kinder, H.

PY - 1992

Y1 - 1992

N2 - During investigations of the magnetic flux dynamics in thin superconducting YBa2Cu3O7−x films we have observed the spontaneous formation of a damage in the film, apparently induced by the applied magnetic field of 0.1 T. The damage developed within less than 40 ms (the time resolution of the experiment) and showed up in the magnetiooptically recorded image of the flux above the sample as a path for massive flux penetration. A subsequent analysis revealed a 1 μm wide gap in the YBa2Cu3O7−x film which had developed over a major portion of the 1 · 1 cm2 sample. It is suggested that the film locally melted as a result of an instability of the superconductor in the critical state.

AB - During investigations of the magnetic flux dynamics in thin superconducting YBa2Cu3O7−x films we have observed the spontaneous formation of a damage in the film, apparently induced by the applied magnetic field of 0.1 T. The damage developed within less than 40 ms (the time resolution of the experiment) and showed up in the magnetiooptically recorded image of the flux above the sample as a path for massive flux penetration. A subsequent analysis revealed a 1 μm wide gap in the YBa2Cu3O7−x film which had developed over a major portion of the 1 · 1 cm2 sample. It is suggested that the film locally melted as a result of an instability of the superconductor in the critical state.

KW - HTc

KW - Instability

KW - Magnetooptic

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DO - 10.1002/andp.19925040402

M3 - Article

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JO - Annalen der Physik

JF - Annalen der Physik

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ER -

Magnetic‐field‐induced damage in a superconducting YBa₂Cu₃O_7−x film

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Keywords

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