IBM J. Res. Dev

Paper

01 Jan 1989

Critical current measurements in single crystals and single-grain boundaries in YBa₂Cu₃O₇ films

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Abstract

The temperature, magnetic field, and orientation dependence of the critical current density of superconducting YBa2Cu3O7 films have been determined from transport measurements. The results support a model of flux creep within single grains and weak-link coupling across grain boundaries.

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