Energy dependence of quasiparticle and transport relaxation rates in metals.

Maksimov E. G., Savrasov D. Y., Dolgov O. V., Savrasov S. Y.

Pn Lebedev Phys Inst Leninsky Prospect 53 Moscow 117924 Russia
Univ Tubingen Inst Theoret Phys D-72076 Tubingen Germany
Max Planck Inst Festkorperforsch D-70569 Stuttgart Germany

Energy-dependent relaxation rates for the one-electron Green function and for the optical conductivity are calculated for a number of metals using electron-phonon spectral functions found ab initio. It is shown that the relaxation rates for these functions are very different in a broad interval of energies and temperatures. Implication of the results to the infrared spectroscopy of high-T-c. superconductors is discussed.
© Copyright 1998 Published by Elsevier Science Ltd.

Solid State Communications, 106 409-413, 1998.

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