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The Monte Carlo Method for the Orthonickelate Model
Panov Yu. D.
1, Nuzhin S. V.
1, Ryumshin V. S.
1, Moskvin A. S.
1,2
1Ural Federal University (Institute of Natural Sciences and Mathematics), Yekaterinburg, Russia
2M.N. Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia
2M.N. Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia
Email: yuri.panov@urfu.ru, nuzhin.stepan@urfu.ru, vitaliy.riumshin@urfu.ru, alexander.moskvin@urfu.ru
The peculiarities of phase states of the triplet boson model for orthonickelates are investigated analytically and by means of numerical simulations. The conditions of thermodynamic stability of homogeneous phases are found. It is shown that the description of the phase inhomogeneous state in the mean-field approximation qualitatively agrees with the observed state of the system in numerical simulations by the classical Monte Carlo method. Keywords: triplet bosons, phase separation, mean-field approximation, numerical simulation.
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