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VOLUME 52 (1990) | ISSUE 11 | PAGE 1214
Evidence of classical percolation theory in the transport properties of ceramic YBa2Cu3O7-δ
Percolation theory is used for a comparative analysis of curves of the superconducting transition in ceramic YBa2Cu307 δ in a zero magnetic field found through measurements of the resistance, R(T), and the dynamic susceptibility, χ (Τ). When there is an oxygen deficiency (<5 > 0), the grains have a wide distribution with respect to the superconducting transition temperature Tc.