Theory of the low-temperature Seebeck coefficient in dilute alloys. II. The empty-core pseudopotential calculation
The Seebeck coefficient S in dilute alloys at low temp. is calculated for an impurity scattering potential derived from the empty-core pseudopotential. In the model considered, free electrons are scattered by a random array of fixed impurities and interact with longitudinal phonons. The electron--ph...
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| Published in: | Physical review. B, Condensed matter Vol. 22; no. 6; pp. 2731 - 2736 |
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| Main Author: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
15-09-1980
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| Online Access: | Get full text |
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| Summary: | The Seebeck coefficient S in dilute alloys at low temp. is calculated for an impurity scattering potential derived from the empty-core pseudopotential. In the model considered, free electrons are scattered by a random array of fixed impurities and interact with longitudinal phonons. The electron--phonon correction to S in alkali--alkali alloys is found to be positive if an impurity is heavier than a solvent and negative otherwise. In most other alloys where the valence of the impurity and the solvent is different, the net electron--phonon enhancement of S is found to be numerically close to the usual mass-enhancement ratio, in accord with the results in the case of the screened Coulomb potential.36 refs.--AA |
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| Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
| ISSN: | 0163-1829 |
| DOI: | 10.1103/PhysRevB.22.2731 |