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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2023, Volume 117, Issue 10, Pages 777–782
DOI: https://doi.org/10.31857/S1234567823100105 (Mi jetpl6948) 		 
This article is cited in 1 scientific paper (total in 1 paper)

CONDENSED MATTER

Tilt and anisotropy of the Dirac spectrum caused by the overlapping of Bloch functions

Z. Z. Alisultanovab, N. A. Demirovc

a Abrikosov International Center for Theoretical Physics, Moscow Institute of Physics and Technology (National Research University), Dolgoprudnyi, Moscow region, 141701 Russia
b Institute of Physics, Dagestan Scientific Center, Russian Academy of Sciences, Makhachkala, 367015 Russia
c Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow, 125412 Russia
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DOI: https://doi.org/10.31857/S1234567823100105
Abstract: It has been shown that the overlapping of bands belonging to equivalent representation of the symmetry group is possible in systems with Dirac points appearing at the crossing of these bands. This overlapping results in the tilt and additional anisotropy of the Dirac spectrum, as well as in the renormalization of the velocity. At the same time, overlapping does not violate the general conditions of existence of the stable band crossing point. The effective Dirac Hamiltonian in the presence of band overlapping is pseudo-Hermitian and corresponds to the effective action of a massless spinor field in the curved spacetime.
Funding agency Grant number
Russian Science Foundation 22-72-00110
This study was supported by the Russian Science Foundation, project no. 22-72-00110.
Received: 13.04.2023
Revised: 14.04.2023
Accepted: 14.04.2023
English version:
Journal of Experimental and Theoretical Physics Letters, 2023, Volume 117, Issue 10, Pages 776–780
DOI: https://doi.org/10.1134/S002136402360115X
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: Z. Z. Alisultanov, N. A. Demirov, “Tilt and anisotropy of the Dirac spectrum caused by the overlapping of Bloch functions”, Pis'ma v Zh. Èksper. Teoret. Fiz., 117:10 (2023), 777–782; JETP Letters, 117:10 (2023), 776–780
Citation in format AMSBIB
\Bibitem{AliDem23}
\by Z.~Z.~Alisultanov, N.~A.~Demirov
\paper Tilt and anisotropy of the Dirac spectrum caused by the overlapping of Bloch functions
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2023
\vol 117
\issue 10
\pages 777--782
\mathnet{http://mi.mathnet.ru/jetpl6948}
\crossref{https://doi.org/10.31857/S1234567823100105}
\edn{https://elibrary.ru/cnsjbg}
\transl
\jour JETP Letters
\yr 2023
\vol 117
\issue 10
\pages 776--780
\crossref{https://doi.org/10.1134/S002136402360115X}
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    • This publication is cited in the following 1 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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    		Письма в Журнал экспериментальной и теоретической физики Pis'ma v Zhurnal Иksperimental'noi i Teoreticheskoi Fiziki
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    References:18
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