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Accumulation and Release of Self-Field Generated Vortices in Percolative YBa2Cu3O7-δ-Films

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Abstract

Pulsed laser heating of current biased percolative YBa2Cu3O7-δ-films can be used to generate and release self-field induced vortices. A laser pulse yields a voltage signal due to penetration of bias current induced magnetic flux in absence of an external magnetic field. Upon retooling, strongly pinned vortices remain in the film. These remanent vortices have been detected after disconnecting the bias source in the currentless film. Applying a subsequent second laser pulse, again yields a signal voltage but of inverse sign due to magnetic flux redistribution.

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Authors and Affiliations

  1. Institut für Experimentelle und Angewandte Physik, Universität Regensburg, 93040, Regensburg, Germany

    A. Kalbeck, M. Terheggen, E. Zepezauer & W. Prettl

  2. Institut de Ciencia de Materials de Barcelona, CSIC, 08193, Bellaterra, Spain

    T. Puig

Authors
  1. A. Kalbeck
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  2. M. Terheggen
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  3. E. Zepezauer
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  4. T. Puig
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  5. W. Prettl
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Kalbeck, A., Terheggen, M., Zepezauer, E. et al. Accumulation and Release of Self-Field Generated Vortices in Percolative YBa2Cu3O7-δ-Films. International Journal of Infrared and Millimeter Waves 21, 1959–1971 (2000). https://doi.org/10.1023/A:1006772101591

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  • DOI: https://doi.org/10.1023/A:1006772101591

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