Determination of the critical current density in superconducting films : comparison of a measured magnetic flux distribution with model calculations

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1992
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Kirchgässner, David
Brüll, Peter
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We have investigated the magnetic field distribution of an epitaxial Y Ba2 Cu3 O7-x film and compared the result with a theoretical calculation which has recently been proposed. This model takes into account the strong demagnetization effects that occur if a thin superconducting film is exposed to an external magnetic field perpenicular to the sample plane. It describes the magnetic field distribution of a two opposing current bands, both carrying the critical current density jc. We use jc as a fit parameter and find very good agreement between the measured and the calculated field distributions.

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530 Physik
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critical current density
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ISO 690KIRCHGÄSSNER, David, Peter BRÜLL, Paul LEIDERER, 1992. Determination of the critical current density in superconducting films : comparison of a measured magnetic flux distribution with model calculations. In: Physica / C [Superconductivity]. 1992, 195(1-2), pp. 157-160. Available under: doi: 10.1016/0921-4534(92)90085-Q
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@article{Kirchgassner1992Deter-4851,
  year={1992},
  doi={10.1016/0921-4534(92)90085-Q},
  title={Determination of the critical current density in superconducting films : comparison of a measured magnetic flux distribution with model calculations},
  number={1-2},
  volume={195},
  journal={Physica / C [Superconductivity]},
  pages={157--160},
  author={Kirchgässner, David and Brüll, Peter and Leiderer, Paul}
}
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