Decomposition of polycrystalline metallic film resistivity from Mathiessen's rule

Abstract
Using the framework of the Mayadas-Shatzkes and the effective Fuchs-Sondheimer conduction models an approximate relation for the product of the film resistivity with its TCR is obtained. As a consequence, the film resistivity may be represented by the sum of the bulk resistivity and an additional resistivity which is temperature-independent.