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Chelyabinskiy Fiziko-Matematicheskiy Zhurnal, 2020, Volume 5, Issue 1, Pages 120–130
DOI: https://doi.org/10.24411/2500-0101-2020-15110 (Mi chfmj173) 		 
Physics

Temperature and pressure effects on the Fermi surface nesting in Ni$_2$MnGa

D. R. Baygutlinab, V. V. Sokolovskiyca, O. N. Miroshkinaab, M. A. Zagrebinda, V. D. Buchel'nikovac, B. Barbiellinieb, E. Lähderantab

a Chelyabinsk State University
b Lappeenranta University of Technology, Lappeenranta, Finland
c National University of Science and Technology "MISiS", Moscow, Russia
d South Ural State University (National Research University), Chelyabinsk, Russia
e Northeastern University, Boston, USA
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DOI: https://doi.org/10.24411/2500-0101-2020-15110
Abstract: The morphology of the Fermi surface and the length of the nesting vector depending on temperature and pressure for the ferromagnetic Ni$_2$MnGa in the austenitic phase are studied using the density functional theory. The effects of exchange correlation are calculated with varying degrees of accuracy, starting with the generalized gradient approximation (GGA) and then, including the meta-GGA corrections within the framework of strongly constrained and appropriately normed (SCAN).
Keywords: Fermi surface, nesting vector, phonon softening, Heusler alloy.
Funding agency Grant number
Russian Science Foundation 17-72-20022
European Cooperation in Science and Technology CA16218
This work was supported by Russian Science Foundation, grant no. 17-72-20022. B.B. acknowledges support from the COST Action CA16218.
Received: 17.01.2020
Revised: 28.02.2020
Document Type: Article
UDC: 538.915
Language: English
Citation: D. R. Baygutlin, V. V. Sokolovskiy, O. N. Miroshkina, M. A. Zagrebin, V. D. Buchel'nikov, B. Barbiellini, E. Lähderanta, “Temperature and pressure effects on the Fermi surface nesting in Ni$_2$MnGa”, Chelyab. Fiz.-Mat. Zh., 5:1 (2020), 120–130
Citation in format AMSBIB
\Bibitem{BaySokMir20}
\by D.~R.~Baygutlin, V.~V.~Sokolovskiy, O.~N.~Miroshkina, M.~A.~Zagrebin, V.~D.~Buchel'nikov, B.~Barbiellini, E.~L\"ahderanta
\paper Temperature and pressure effects on the Fermi surface nesting in Ni$_2$MnGa
\jour Chelyab. Fiz.-Mat. Zh.
\yr 2020
\vol 5
\issue 1
\pages 120--130
\mathnet{http://mi.mathnet.ru/chfmj173}
\crossref{https://doi.org/10.24411/2500-0101-2020-15110}
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