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VOLUME 26 (1977) | ISSUE 2 | PAGE 81
Low-frequency maxima of phonon state density and the exponential term of the resistance of superconductors with A-15 lattices
It is found that the energy position of the low-frequency maxima of the phonon density of states T* and the characteristic temperature T0 of the exponential resistance term in superconductors with A-15 lattices are monotonic functions of the atomic weight of the compound. It is observed that for each compound the value of T0 coincides with T*. The result is attributed to a phonon selection that is caused by the topology of the Fermi surface.