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Effect of sublattice symmetry breaking on the phase diagram of the extended Hubbard model

S. D. Mostovoy$^{1,2}$, O. V. Pavlovsky$^{1,2}$

Memoirs of the Faculty of Physics 2022. N 4.

  • Article
Annotation

The effect of sublattice symmetry breaking in the extended Hubbard model on the position of semimetal-antiferromagnet phase transition is considered. It is shown that setting different values of on-site interaction intensity on the sublattices leads to a shift of the phase transition point. The formation of spin condensate on sublattices is discussed. Changes in kinetic and potential energies of electrons are demonstrated.

Received: 2022 May 14
Approved: 2022 June 22
PACS:
05.50.+q Lattice theory and statistics
02.70.-c Computational techniques; simulations
02.70.Uu Applications of Monte Carlo methods
Authors
S. D. Mostovoy$^{1,2}$, O. V. Pavlovsky$^{1,2}$
$^1$Department of Quantum Statistics and Field Theory, Faculty of Physics\
$^2$Institute of Theoretical and Experimental Physics, National Research Center "Kurchatov Insti-tute
Issue 4, 2022

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