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Teoreticheskaya i Matematicheskaya Fizika, 1994, Volume 101, Number 2, Pages 294–303 (Mi tmf1686)  
Method of anomalous Green's functions: Antiferromagnetism in the Hubbard model on a triangular lattice

K. N. Il'inskii, V. N. Popov

St. Petersburg Department of V. A. Steklov Institute of Mathematics, Russian Academy of Sciences
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Abstract: 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.
Received: 12.11.1993
English version:
Theoretical and Mathematical Physics, 1994, Volume 101, Issue 2, Pages 1361–1367
DOI: https://doi.org/10.1007/BF01018284
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Language: Russian
Citation: K. N. Il'inskii, V. N. Popov, “Method of anomalous Green's functions: Antiferromagnetism in the Hubbard model on a triangular lattice”, TMF, 101:2 (1994), 294–303; Theoret. and Math. Phys., 101:2 (1994), 1361–1367
Citation in format AMSBIB
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\by K.~N.~Il'inskii, V.~N.~Popov
\paper Method of anomalous Green's functions: Antiferromagnetism in the Hubbard model on a~triangular lattice
\jour TMF
\yr 1994
\vol 101
\issue 2
\pages 294--303
\mathnet{http://mi.mathnet.ru/tmf1686}
\transl
\jour Theoret. and Math. Phys.
\yr 1994
\vol 101
\issue 2
\pages 1361--1367
\crossref{https://doi.org/10.1007/BF01018284}
\isi{https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=Publons&SrcAuth=Publons_CEL&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=A1994QY17400011}
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