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Physical Review B
Paper

Scaling behavior in electrical transport across grain boundaries in YBa2Cu3O7- superconductors

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Abstract

We have found that the product of the critical current and the resistance of a grain-boundary junction scale with the resistance of the boundary. This scaling is observed to hold for a variety of samples prepared by evaporation or laser ablation and whose critical current density varies by three orders of magnitude. © 1990 The American Physical Society.

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Physical Review B

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