Thermal phase transition of generalized Heisenberg models for SU(N) spins on square and honeycomb lattices

  title={Thermal phase transition of generalized Heisenberg models for SU(N) spins on square and honeycomb lattices},
  author={T. Suzuki and K. Harada and H. Matsuo and S. Todo and N. Kawashima},
  journal={Physical Review B},
We investigate thermal phase transitions to a valence-bond solid phase in SU(N) Heisenberg models with four- or six-body interactions on a square or honeycomb lattice, respectively. In both cases, a thermal phase transition occurs that is accompanied by rotational symmetry breaking of the lattice. We perform quantum Monte Carlo calculations in order to clarify the critical properties of the models. The estimated critical exponents indicate that the universality classes of the square- and… Expand

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