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Thermally activated flux motion in a-axis YBa2Cu3O7/PrBa2Cu3O7 superlattices

Published inPhysical Review. B, Condensed Matter, vol. 52, no. 9, p. 6858-6862
Publication date1995
Abstract

We have investigated resistive properties of a-axis YBa₂Cu₃O₇/a,b-axis PrBa₂Cu₃O₇ superlattices in magnetic fields to study thermally activated flux-flow resistance. We find that in magnetic fields perpendicular to the YBa₂Cu₃O₇/PrBa₂Cu₃O₇ layering the activation energies of these superlattices deduced from the tail of the resistive transitions have a logarithmic magnetic-field dependence for small YBa₂Cu₃O₇ thicknesses (<300 Å), in agreement with recent theories of thermally activated resistance in strongly pinned two-dimensional superconductors.

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Citation (ISO format)
SUZUKI, Y. et al. Thermally activated flux motion in <i>a</i>-axis YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7</sub>/PrBa<sub>2</sub>Cu<sub>3</sub>O<sub>7</sub> superlattices. In: Physical Review. B, Condensed Matter, 1995, vol. 52, n° 9, p. 6858–6862. doi: 10.1103/PhysRevB.52.6858
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ISSN of the journal1098-0121
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