Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/102271
Title: Metal–Insulator Transition in the Hubbard Model: Correlations and Spiral Magnetic Structures
Authors: Timirgazin, M. A.
Igoshev, P. A.
Arzhnikov, A. K.
Irkhin, V. Y.
Issue Date: 2016
Publisher: Springer New York LLC
Citation: Metal–Insulator Transition in the Hubbard Model: Correlations and Spiral Magnetic Structures / M. A. Timirgazin, P. A. Igoshev, A. K. Arzhnikov, et al. — DOI 10.1007/s10909-016-1603-z // Journal of Low Temperature Physics. — 2016. — Vol. 185. — Iss. 5-6. — P. 651-656.
Abstract: The metal–insulator transition (MIT) for the square, simple cubic, and body-centered cubic lattices is investigated within the t–t′ Hubbard model at half-filling by using both the generalized for the case of spiral order Hartree–Fock approximation (HFA) and Kotliar–Ruckenstein slave-boson approach. It turns out that the magnetic scenario of MIT becomes superior over the non-magnetic one. The electron correlations lead to some suppression of the spiral phases in comparison with HFA. We found the presence of a metallic antiferromagnetic (spiral) phase in the case of three-dimensional lattices. © 2016, Springer Science+Business Media New York.
Keywords: ELECTRON CORRELATIONS
INCOMMENSURATE MAGNETISM
METAL–INSULATOR TRANSITION
MOTT TRANSITION
ELECTRON CORRELATIONS
HARTREE APPROXIMATION
HUBBARD MODEL
MAGNETISM
METALS
ANTIFERROMAGNETICS
BODY CENTERED CUBIC LATTICES
HALF-FILLING
INCOMMENSURATE MAGNETISM
MOTT TRANSITIONS
NONMAGNETICS
SIMPLE CUBIC
THREE-DIMENSIONAL LATTICES
METAL INSULATOR TRANSITION
URI: http://hdl.handle.net/10995/102271
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 84962301310
PURE ID: 1303811
acebe508-2cfb-4bf3-8d58-1346152791ea
ISSN: 222291
DOI: 10.1007/s10909-016-1603-z
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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