Characterization of quantum spin liquids and their spinon band structures via functional renormalization

  title={Characterization of quantum spin liquids and their spinon band structures via functional renormalization},
  author={Max Hering and Jonas Sonnenschein and Yasir Iqbal and Johannes Reuther},
  journal={Physical Review B},
We combine the pseudofermion functional renormalization group (PFFRG) method with a self-consistent Fock-like mean-field scheme to calculate low-energy effective theories for emergent spinon excitations in spin-1/2 quantum spin liquids. Using effective spin interactions from PFFRG as an input for the Fock equation and allowing for the most general types of free spinon ans\"atze as classified by the projective symmetry group (PSG) method, we are able to systematically determine spinon band… 

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