Abstract
The effect of single-ion anisotropy on the phase states and dynamic properties of a non-Heisenberg magnet with S = 1 is investigated in the mean field approximation. It is shown that, in contrast to the isotropic model, the inclusion of single-ion anisotropy changes the type of phase transitions between the dipole and nematic phases and leads to the disappearance of the SU(3) point. The phase diagram is constructed.
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ACKNOWLEDGMENTS
The authors are grateful to B.A. Ivanov and O.A. Kosmachev for fruitful discussions and valuable remarks.
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Translated by N. Wadhwa
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Yarygina, E.A., Matyunina, Y.Y., Klevets, P.N. et al. Dynamic and Static Properties of a Two-Sublattice Anisotropic Non-Heisenberg Magnet. J. Exp. Theor. Phys. 129, 1070–1078 (2019). https://doi.org/10.1134/S1063776119110086
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DOI: https://doi.org/10.1134/S1063776119110086