Dynamic scaling of binary composites (Ag-YBa2Cu3O7-δ)

The scaling properties of the electrical conductivity (Σ) are studied in a binary composite system consisting of metallic silver (Ag) and ceramic copper oxide (YBa 2 Cu 3 O 7-δ ). A percolation transition is observed when p, the volume fraction of Ag, is varied systematically from 0% (pure YBa 2 Cu 3 O 7-δ ) to 100% (pure Ag)