Dynamical susceptibilities of the Falicov-Kimball model with correlated hopping: general approach
The Falicov-Kimball model with correlated hopping is studied in the limit of in nite spatial dimensions. Dynamical susceptibilities are calculated using the generalization of the Dynamical Mean-Field Theory (DMFT), which is based on expansion over electron hopping around the single-site limit. A s...
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| Datum: | 2009 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | English |
| Veröffentlicht: |
Інститут фізики конденсованих систем НАН України
2009
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| Schriftenreihe: | Condensed Matter Physics |
| Online Zugang: | http://dspace.nbuv.gov.ua/handle/123456789/119765 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Dynamical susceptibilities of the Falicov-Kimball model with correlated hopping: general approach / A.M. Shvaika, O.Ya. Farenyuk // Condensed Matter Physics. — 2009. — Т. 12, № 1. — С. 63-74. — Бібліогр.: 26 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | The Falicov-Kimball model with correlated hopping is studied in the limit of in nite spatial dimensions. Dynamical
susceptibilities are calculated using the generalization of the Dynamical Mean-Field Theory (DMFT), which
is based on expansion over electron hopping around the single-site limit. A special case of semi-elliptic density
of states and diagonal correlated hopping is considered numerically and the absence of phase transition for
all temperatures except T = 0 is demonstrated, which corresponds to the known results. |
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