Electronic multicriticality in bilayer graphene

  title={Electronic multicriticality in bilayer graphene},
  author={Vladimir Cvetkovic and Robert E. Throckmorton and Oskar Vafek},
  journal={Physical Review B},
We map out the possible ordered states in bilayer graphene at the neutrality point by extending the previous renormalization group treatment of many-body instabilities to finite temperature, trigonal warping and externally applied perpendicular electric field. We were able to analytically determine all outcomes of the RG flow equations for the 9 four-fermion coupling constants. While the full phase diagram exhibits a rich structure, we confirm that when forward scattering dominates, the only… 

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