Corpus ID: 237420887

Correlated second-order Dirac semimetals with Coulomb interactions

  title={Correlated second-order Dirac semimetals with Coulomb interactions},
  author={Yu-Wen Lee and Yu-Li Lee},
  • Yu-Wen Lee, Yu-Li Lee
  • Published 5 September 2021
  • Physics
We investigate the effects of long range Coulomb interactions on the low-temperature properties of a second-order Dirac semimetal in terms of the renormalization group. In contrast to the firstorder Dirac semimetal, the full rotation symmetry is broken even in the continuum limit, and thus the low-energy physics is controlled by two dimensionless parameters: the dimensionless coupling constant and the ratio of the anisotropy parameters. We show that the former flows to zero and the latter flows… Expand

Figures from this paper


we can add a constant to g3: g3(k) = −t3(C3 − γ + 2 − C1 − C2), where γ is real
  • Without breaking the P and T symmetries