Abstract:
The three-band Hubbard model which is known also as the Emery model is investigated in the framework of thermal Green's functions. It is shown that antiferromagnetic and superconductive states can exist in this model at some appropriate doping and sufficiently low temperatures. In the two-dimensional repulsive case under consideration superconductivity turns out to be possible due to closeness of the Fermi level to one of the energy function saddle points and the pairing occurs in channels with odd angular momenta.
Citation:
K. L. Malyshev, V. N. Popov, “On superconductivity in the three-band two-dimensional repulsive Hubbard model”, TMF, 105:1 (1995), 149–162; Theoret. and Math. Phys., 105:1 (1995), 1307–1318
\Bibitem{MalPop95}
\by K.~L.~Malyshev, V.~N.~Popov
\paper On superconductivity in the three-band two-dimensional repulsive Hubbard model
\jour TMF
\yr 1995
\vol 105
\issue 1
\pages 149--162
\mathnet{http://mi.mathnet.ru/tmf1365}
\mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=1602039}
\zmath{https://zbmath.org/?q=an:0875.82059}
\transl
\jour Theoret. and Math. Phys.
\yr 1995
\vol 105
\issue 1
\pages 1307--1318
\crossref{https://doi.org/10.1007/BF02067495}
\isi{https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=Publons&SrcAuth=Publons_CEL&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=A1995UF46100008}
Linking options:
https://www.mathnet.ru/eng/tmf1365
https://www.mathnet.ru/eng/tmf/v105/i1/p149
This publication is cited in the following 3 articles:
V. S. Kapitonov, K. L. Malyshev, V. N. Popov, P. A. Sevastianov, “The effective action and the collective modes spectrum in the antiferromagnetic phase of the three–band repulsive Hubbard model”, J. Math. Sci. (New York), 99:2 (2000), 2147–2155
G. I. Mironov, “Antiferromagnetism in the Hubbard model”, Phys. Solid State, 39:9 (1997), 1420
V. Kapitonov, C. Malyshev, V.N. Popov, P. Sevastyanov, “Path integration and Bose spectrum in the antiferromagnetic state of the two-dimensional weakly repulsive Hubbard model”, Physics Letters A, 236:1-2 (1997), 89