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Phase Transition in Temperature “Quadrupolar Phase–Disordered Phase” in a Two‐Dimensional Non‐Heisenberg Ferromagnet
Author(s) -
Fridman Yu.A.,
Spirin D.V.
Publication year - 2002
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200205)231:1<165::aid-pssb165>3.0.co;2-p
Subject(s) - condensed matter physics , ferromagnetism , isotropy , heisenberg model , anisotropy , phase transition , phase (matter) , physics , quantum phase transition , atmospheric temperature range , quantum mechanics , thermodynamics
In the paper we investigate phase transitions in temperature from the quadrupolar phase to the disordered phase in 2D isotropic and anisotropic non‐Heisenberg ferromagnets. It is shown that in a 2D isotropic non‐Heisenberg ferromagnet the long‐range magnetic order is absent, whereas the quadrupolar phase is implemented in the anisotropic one. The temperature of the phase transition is determined. This system is compared with a 3D non‐Heisenberg ferromagnet.