Gilabert, A.; Khatami, M.; Berthier, S.; Lafait, J.; … - In: Physica A: Statistical Mechanics and its Applications 157 (1989) 1, pp. 223-229
We report on electrical resistivity versus temperature from 50 K down to 1.5 K of PtAl2O3 and AuAl2O3 cermets. When the metal volume fraction q is below the percolation threshold qc, the dc conductivity shows a temperature dependence of the form ln σ ∝ T−n which is usually related to...