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2009 | 115 | 1 | 104-106
Article title

Thermodynamics of the Generalized Spin-One-Half Falicov-Kimball Model in Two Dimensions

Content
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Languages of publication
EN
Abstracts
EN
The extrapolation of small-cluster exact-diagonalization calculations and the Monte Carlo method is used to study the spin-one-half Falicov-Kimball model extended by the spin-dependent Coulomb interaction (J) between the localized f and itinerant d electrons as well as the on-site Coulomb interaction (U_{ff}) between the localized f electrons. It is shown that in the symmetric case the ground-state phase diagram of the model has an extremely simple structure that consists of only two phases, and namely, the charge-density-wave phase and the spin-density-wave phase. The nonzero temperature studies showed that these phases persist also at finite temperatures. The same calculations that we performed for unsymmetric case showed that charge and spin ordering can be destroyed simultaneously or consecutively.
Keywords
EN
Year
Volume
115
Issue
1
Pages
104-106
Physical description
Dates
published
2009-01
References
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv115n1022kz
Identifiers
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