Topologically different spin disorder phases of the J1-J2 Heisenberg model on the honeycomb lattice
arXiv:2006.04350 · doi:10.1016/j.physe.2020.114037
Abstract
Searching for spin liquids on the honeycomb J1-J2 Heisenberg model has been attracting great attention in the past decade. In this Paper we investigate the topological properties of the J1-J2 Heisenberg model by introducing nearest-neighbour and next-nearest-neighbour bond parameters. We find that there exist two topologically different phases in the spin disordered regime 0.2<J2/J1<0.5: for J2/J1<0.32, the system is a zero-flux spin liquid which is topological trivial and gapless; for J2/J1>0.32, it is a pi-flux chiral spin liquid, which is topological nontrivial and gapped. These results suggest that there exist two topologically different spin disorder phases in honeycomb J1-J2 Heisenberg model.
arXiv comment11 pages, 4 figures
References in corpus (13)
- Quantum Spin Hall Effect in Graphene
- Topological Mott Insulators
- Quantum spin-liquid emerging in two-dimensional correlated Dirac fermions
- Absence of a Spin Liquid Phase in the Hubbard Model on the Honeycomb Lattice
- Nature of the spin liquid state of the Hubbard model on honeycomb lattice
- Phase diagram of spin-1/2 J1-J2 Heisenberg model on honeycomb lattice
- Weak plaquette valence bond order in the honeycomb Heisenberg model
- Deconfined criticality in the frustrated Heisenberg honeycomb antiferromagnet
- Ground-state phase diagram of the quantum J1-J2 model on the honeycomb lattice
- The frustrated Heisenberg antiferromagnet on the honeycomb lattice: -- model
- Competition between spin liquids and valence-bond order in the frustrated spin- Heisenberg model on the honeycomb lattice
- Spiral antiferromagnets beyond the spin-wave approximation: frustrated and Heisenberg models in the honeycomb lattice
- Ground-state and finite-temperature properties of spin liquid phase in the J1-J2 honeycomb model