Percolative behavior of the superconductive transition of YBa2Cu3O7 films

The superconductive transition of c-axis-oriented YBa2Cu3O7 thin films, as characterized by measurements of the temperature dependence of the magnetic penetration depth, is found to occur below the Ginzburg-Landau mean-field transition. The divergence of the penetration depth at the transition is in good quantitative agreement with the predictions of a percolation model.


Published in:
Physival Review Letters, 64, 25, 3082-3085
Year:
1990
Laboratories:


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 Record created 2005-10-14, last modified 2018-03-17

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