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On the current transport limitations in Bi-based high temperature superconducting tapes (2001)

Tönies, S. ; Weber, H. W.

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 78 (2001), S. 3851-3853

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ISSN: 1077-3118

Source: AIP Digital Archive

Topics: Physics

Notes: The transport critical current densities, Jc, of superconducting (Bi, Pb)2Sr2Ca2Cu3Ox/Ag tapes were measured before and after employing a special radiation technique, which leaves the grain boundary properties largely unaffected. We identify two regions separated by a temperature dependent crossover field Hgb−p. In the low field region, Jc is limited by the transport currents across the grain boundaries, which remain unchanged after irradiation. Above Hgb−p, Jc is limited by flux pinning. In this field region, the artificial defects optimize flux pinning and enhance Jc. © 2001 American Institute of Physics.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.1378797

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