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http://elar.urfu.ru/handle/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://elar.urfu.ru/handle/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 ученых УрФУ, проиндексированные в SCOPUS и WoS CC |
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