SCATTERING MECHANISM ELECTRON-PHONON-SURF ACES AND ITS CONTRIBUTION TO LOW-TEMPERATURE ELECTRICAL-RESISTIVITY OF METALS

The electrical resistivity of high-purity tungsten single crystals are studied in the temperature range 2-40 K under size effect condition. In the low temperature limit and in an approximation, which takes into account the change of the electron-surface scattering probability at small grazing angles, the resistivity calculations have been made. It is shown that quadratic temperature contribution to the electrical res istivity of pure metal is associated mainly with an interference betwe en electron-phonon and electron-surface scattering. A satisfactory agr eement is observed between the theory and the experiment.