Electron correlations in narrow energy bands: ground state energy and metal-insulator transition
The electron correlations in narrow energy bands are examined within the framework of the Hubbard model. The single-particle Green function and energy spectrum are obtained in a paramagnetic state at half-filling by means of a new two-pole approximation. Analytical expressions for the energy gap,...
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| Veröffentlicht in: | Condensed Matter Physics |
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| Datum: | 2000 |
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | English |
| Veröffentlicht: |
Інститут фізики конденсованих систем НАН України
2000
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| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/120984 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Electron correlations in narrow energy bands: ground state energy and metal-insulator transition / L. Didukh, Yu. Skorenkyy // Condensed Matter Physics. — 2000. — Т. 3, № 4(24). — С. 787-798. — Бібліогр.: 27 назв. — англ. |
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