On the residual resistivity of a metal

An investigation of the singularities of the one-particle Green's function is used to consider the residual resistivity of a normal Fermi system associated with scattering on heavy classical centers. It is shown that in the region of “high” temperatures $m/M\ll\theta/\varepsilon_F$ the system has a residual resistivity, while in the case of “low” temperatures $\theta/\varepsilon_F\ll m/M$ a specific linear dependence of the resistivity on the temperature $\theta$ is found.