Phase diagram of the antiferromagnetic XXZ model on the triangular lattice

  title={Phase diagram of the antiferromagnetic XXZ model on the triangular lattice},
  author={Daniela Sellmann and Xue-Feng Zhang and Sebastian Eggert},
  journal={Physical Review B},
We determine the quantum phase diagram of the antiferromagnetic spin-1/2 XXZ model on the triangular lattice as a function of magnetic field and anisotropic coupling $J_z$. Using the density matrix renormalization group (DMRG) algorithm in two dimensions we establish the locations of the phase boundaries between a plateau phase with 1/3 N\'eel order and two distinct coplanar phases. The two coplanar phases are characterized by a simultaneous breaking of both translational and U(1) symmetries… 

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