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@ARTICLE{Chen:885467,
      author       = {Chen, Chuang and Xu, Xiao Yan and Meng, Zi Yang and
                      Hohenadler, Martin},
      title        = {{C}harge-{D}ensity-{W}ave {T}ransitions of {D}irac
                      {F}ermions {C}oupled to {P}honons},
      journal      = {Physical review letters},
      volume       = {122},
      number       = {7},
      issn         = {1079-7114},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2020-03850},
      pages        = {077601},
      year         = {2019},
      abstract     = {The spontaneous generation of charge-density-wave order in
                      a Dirac fermion system via the natural mechanism of
                      electron-phonon coupling is studied in the framework of the
                      Holstein model on the honeycomb lattice. Using two
                      independent and unbiased quantum Monte Carlo methods, the
                      phase diagram as a function of temperature and coupling
                      strength is determined. It features a quantum critical point
                      as well as a line of thermal critical points. Finite-size
                      scaling appears consistent with fermionic Gross-Neveu-Ising
                      universality for the quantum phase transition and bosonic
                      Ising universality for the thermal phase transition. The
                      critical temperature has a maximum at intermediate
                      couplings. Our findings motivate experimental efforts to
                      identify or engineer Dirac systems with sufficiently strong
                      and tunable electron-phonon coupling.},
      ddc          = {530},
      pnm          = {899 - ohne Topic (POF4-899) / Numerical simulations of
                      strongly correlated electron systems. $(hwb03_20190501)$},
      pid          = {G:(DE-HGF)POF4-899 / $G:(DE-Juel1)hwb03_20190501$},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1103/PhysRevLett.122.077601},
      url          = {https://juser.fz-juelich.de/record/885467},
}