Method of anomalous Green's functions: Antiferromagnetism in the Hubbard model on a triangular lattice.

Autor: Il'inskii, K., Popov, V.
Zdroj: Theoretical & Mathematical Physics; Nov1994, Vol. 101 Issue 2, p1361-1367, 7p
Abstrakt: A method is proposed for describing antiferromagnetic and ferromagnetic states on a triangular lattice in the formalism of anomalous temperature-dependent Green's functions, for which equations of Dyson-Gor'kov type are formulated. These equations are solved in the Hartree approximation, and self-consistency equations are obtained for the order parameters. Finally, the connection between the considered theory and experiment is discussed. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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