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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2019, Volume 109, Issue 1, Pages 48–53
DOI: https://doi.org/10.1134/S0370274X19010090 (Mi jetpl5790) 		 
This article is cited in 2 scientific papers (total in 2 papers)

CONDENSED MATTER

Phase diagram of the two-orbital model for iron-based HTSC: variational cluster approximation

Ya. V. Zhumagulovab, V. A. Kashurnikova, A. V. Krasavina, A. E. Lukyanova, V. D. Neverova

a National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Moscow, Russia
b ITMO University, St. Petersburg, Russia
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DOI: https://doi.org/10.1134/S0370274X19010090
Abstract: The phase diagram of the two-dimensional two-orbital Hubbard model, which is widely used to describe high-temperature iron-based superconductors, is calculated in the electron doping region using the method of the variational cluster approximation. It is found that the coexistence of the antiferromagnetic and superconducting phases is realized in a wide range of electron doping values. In the superconducting phase, the order parameter has $s^{\pm}$ symmetry.
Funding agency Grant number
Russian Science Foundation 16-19-00168
Received: 23.10.2018
Revised: 07.11.2018
Accepted: 07.11.2018
English version:
Journal of Experimental and Theoretical Physics Letters, 2019, Volume 109, Issue 1, Pages 45–50
DOI: https://doi.org/10.1134/S0021364019010144
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: Ya. V. Zhumagulov, V. A. Kashurnikov, A. V. Krasavin, A. E. Lukyanov, V. D. Neverov, “Phase diagram of the two-orbital model for iron-based HTSC: variational cluster approximation”, Pis'ma v Zh. Èksper. Teoret. Fiz., 109:1 (2019), 48–53; JETP Letters, 109:1 (2019), 45–50
Citation in format AMSBIB
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