Phase transitions in a triangular Blume-Capel antiferromagnet

@article{vZukovivc2013PhaseTI,
  title={Phase transitions in a triangular Blume-Capel antiferromagnet},
  author={Milan vZukovivc and Andrej Bob'ak},
  journal={Physical Review E},
  year={2013},
  volume={87},
  pages={032121}
}
We study the critical behavior of a frustrated Blume-Capel (BC) antiferromagnet on a triangular lattice by Monte Carlo simulations. For a reduced single-ion anisotropy strength $-1.47 \lesssim d < 0$ we find two phase transitions. The low-temperature phase is characterized by the antiferromagnetic long-range ordering (LRO) on two sublattices with the third one remaining in a non-magnetic state. At higher temperatures there is a critical region of the Berezinskii-Kosterlitz-Thouless (BKT) type… 
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