Conference paper
Thin film technology for high and low Tc SQUIDs
W.J. Gallagher
EMBC 1990
We demonstrate experimentally the existence of a continuous phase transition between a normal and a true superconducting phase (with zero linear resistivity) in epitaxial films of Y-Ba-Cu-O in strong magnetic fields fields, HHc1. The nonlinear I-V curves show scaling behavior near the transition and the relevant critical exponents are extracted. These exponents are consistent with values expected for freezing into a superconducting vortex-glass phase. © 1989 The American Physical Society.
W.J. Gallagher
EMBC 1990
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