Ferromagnetism and spin-valley liquid states in moiré correlated insulators

  title={Ferromagnetism and spin-valley liquid states in moir{\'e} correlated insulators},
  author={Xiao-chuan Wu and Anna Keselman and Chao-Ming Jian and Kelly Ann Pawlak and Cenke Xu},
  journal={Physical Review B},
Motivated by the recent observation of evidences of ferromagnetism in correlated insulating states in systems with Moir\'{e} superlattices, we study a two-orbital quantum antiferromagnetic model on the triangular lattice, where the two orbitals physically correspond to the two valleys of the original graphene sheet. For simplicity this model has a SU(2)$^s$$\otimes$SU(2)$^v$ symmetry, where the two SU(2) symmetries correspond to the rotation within the spin and valley space respectively… Expand

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