Zmuidzinas, J. (1978) Anharmonic Effects In Ion-Electron Chains. Journal de Physique Colloques, 39 (C6). pp. 715-716. ISSN 0449-1947. doi:10.1051/jphyscol:19786318. https://resolver.caltech.edu/CaltechAUTHORS:20200318-084529901
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Abstract
It is shown that a Fröhlich Hamiltonian for a chain of ions and conduction electrons leads to an effective quartic anharmonic phonon Hamiltonian characterized by a dimensionless parameter a²_e ≈ (3/64)(ξ/ε_F)⁴ (e_F/ 1/2 Ms², where ξ≈ε_F is an electron-phonon coupling parameter, M the ion mass, and s the speed of Sound. This electronic anharmonicity is ordinarily negligible (α²_e ≈ 0.01) but may become large and dominant in light-ion systems with high Fermi energies, for example, in filamentary metallic hydrogen.
| Item Type: | Article | ||||||
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| Additional Information: | © 1978 EDP Sciences. | ||||||
| Issue or Number: | C6 | ||||||
| DOI: | 10.1051/jphyscol:19786318 | ||||||
| Record Number: | CaltechAUTHORS:20200318-084529901 | ||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20200318-084529901 | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 101960 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | Tony Diaz | ||||||
| Deposited On: | 18 Mar 2020 16:21 | ||||||
| Last Modified: | 16 Nov 2021 18:07 |
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