Electrical resistivity of highly disordered metallic materials at high temperatures

It is suggested that a common mechanism underlies both the anomalous temperature coefficients of resistivity of liquid and amorphous metals and also the anomalous 'bulge' effect in the high-temperature resistivity of some superconducting materials. The mechanism requires a treatment of the electron scattering which includes multiple scattering caused by the high degree of structural and/or thermal disorder.