Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1797632 | Journal of Magnetism and Magnetic Materials | 2017 | 7 Pages |
Abstract
•A review of the SU(N) Schwinger boson formalism is presented.•The phase diagram at zero temperature is obtained.•The static and dynamical quadrupolar structure factors are calculated.
I present in details the SU(N) Schwinger boson formalism, also known as flavor wave theory, that has been used several times in the literature. I use the method to study the ferroquadrupolar phase of a quantum biquadratic Heisenberg model with spin S=1 on the triangular lattice with third-nearest-neighbor interactions. Results for the phase diagram at zero temperature and the static and dynamical quadrupolar structure factors are presented. In principle, the results could be applied to NiGa2S4.
Keywords
Related Topics
Physical Sciences and Engineering
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Condensed Matter Physics
Authors
A.S.T. Pires,