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@ARTICLE{Raczkowski:885469,
      author       = {Raczkowski, Marcin and Assaad, Fakher F.},
      title        = {{E}mergent {C}oherent {L}attice {B}ehavior in {K}ondo
                      {N}anosystems},
      journal      = {Physical review letters},
      volume       = {122},
      number       = {9},
      issn         = {1079-7114},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2020-03852},
      pages        = {097203},
      year         = {2019},
      abstract     = {How many magnetic moments periodically arranged on a
                      metallic surface are needed to generate a coherent Kondo
                      lattice behavior? We investigate this fundamental issue
                      within the particle-hole symmetric Kondo lattice model using
                      quantum Monte Carlo simulations. Extra magnetic atoms
                      forming closed shells around the initial impurity induce a
                      fast splitting of the Kondo resonance at the inner shells,
                      which signals the formation of composite heavy-fermion
                      bands. The onset of the hybridization gap matches well the
                      enhancement of antiferromagnetic spin correlations in the
                      plane perpendicular to the applied magnetic field, a genuine
                      feature of the coherent Kondo lattice. In contrast, the
                      outermost shell remains dominated by a local Kondo physics
                      with spectral features resembling the single-impurity
                      behavior.},
      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.122.097203},
      url          = {https://juser.fz-juelich.de/record/885469},
}