Thermal Transport and Non-Mechanical Forces in Metals
Fuente:
arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2022
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| _version_ | 1866916097171652608 |
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| author | Amarel, J. Belitz, D. Kirkpatrick, T. R. |
| author_facet | Amarel, J. Belitz, D. Kirkpatrick, T. R. |
| contents | We discuss contributions to the thermopower in an electron fluid. A simple argument based on Newton's second law with the pressure gradient as the force suggests that the thermopower is given by a thermodynamic derivative, viz., the entropy per particle, rather than being an independent transport coefficient. The resolution is the existence of an entropic force that results from a coupling between the mass current and the heat current in the fluid. We also discuss and clarify some aspects of a recent paper (Phys. Rev. B {\bf 102}, 214306 (2020)) that provided a method for exactly solving electronic transport equations in the low-temperature limit. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2205_06362 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Thermal Transport and Non-Mechanical Forces in Metals Amarel, J. Belitz, D. Kirkpatrick, T. R. Statistical Mechanics We discuss contributions to the thermopower in an electron fluid. A simple argument based on Newton's second law with the pressure gradient as the force suggests that the thermopower is given by a thermodynamic derivative, viz., the entropy per particle, rather than being an independent transport coefficient. The resolution is the existence of an entropic force that results from a coupling between the mass current and the heat current in the fluid. We also discuss and clarify some aspects of a recent paper (Phys. Rev. B {\bf 102}, 214306 (2020)) that provided a method for exactly solving electronic transport equations in the low-temperature limit. |
| title | Thermal Transport and Non-Mechanical Forces in Metals |
| topic | Statistical Mechanics |
| url | https://arxiv.org/abs/2205.06362 |