Annotation

V.A.Kozlov, V.D.Lakhno.
Conductivity of compensated semimetals with low carrier density in the case of phonon-phonon dragging //Pis'ma Zh. Eksp. Teor. Fiz., 1976, v. 24, №7, p.437-441

      It is shown that when the scattering of electrons and holes from a surface differ in character, a unique hydrodynamic conductivity mechanism is possible and leads to an exponential temperature dependence. The conditions for experimentally observing the effect in real materials are discussed.