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Temperature dependence of the diffusion thermopower in metals

W. Hansch

  • I. Institut für Theoretische Physik, Universitat Hamburg, 2000 Hamburg 36, Jungiusstrasse 9, Federal Republic of Germany

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Phys. Rev. B 31, 3504 – Published 15 March, 1985

DOI: https://doi.org/10.1103/PhysRevB.31.3504

Abstract

We calculate the diffusion thermopower for a system of electrons interacting with static impurities and longitudinal-acoustical phonons. Our calculation is based on a many-body transport equation developed earlier. We compare our results with conjectures from Kubo’s formula and find agreement. For a simple model, we present the temperature variation of the corresponding vertex functions over a wide temperature range. We find a pronounced temperature dependence between 0.2ΘD and 1.0ΘD; here ΘD is the Debye temperature. We discuss the implications on the use of Mott’s relationship.

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References (41)

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Phys. Rev. B 31, 3504– Published 15 March, 1985
  • Received 23 March 1984

© 1985 American Physical Society

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