The spin-1 J1-J3 Heisenberg model on a triangular lattice

@inproceedings{Rubin2017TheSJ,
  title={The spin-1 J1-J3 Heisenberg model on a triangular lattice},
  author={Pavel Rubin and Albert Sherman},
  year={2017}
}
Motivated by the experimental data for NiGa2S4, the spin-1 Heisenberg model on a triangular lattice with the ferromagnetic nearest- and antiferromagnetic third-nearest-neighbor exchange interactions, J1 = −(1 − p)J and J3 = pJ, J > 0, is studied in the range 0 ≤ p ≤ 1. Mori's projection operator technique and the Lanczos exact diagonalization are used. Mori's method retains the rotation symmetry of spin components and does not anticipate any magnetic ordering. For zero temperature several phase… CONTINUE READING

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