Effect of interference between the electron-impurity and electron-phonon interactions upon the thermoelectric properties of alloys |
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| Authors: | Jerome J Krempasky Albert Schmid |
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| Affiliation: | (1) Institut für Theorie der Kondensierten Materie, University of Karlsruhe, BRD;(2) Present address: University of Southern California, Los Angeles, California |
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| Abstract: | We calculate the thermoelectric power of a metal by considering particularly the particle-hole transformation symmetry. If there is complete symmetry with respect to this transformation, the thermopower is absent. However, the elec- tron-phonon and the electron-impurity interactions are intrinsically such that they change sign under this transformation. Thus a finite thermopower arises due to an interference between different orders in a perturbation expansion in these interactions. |
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