Metal-insulator transition caused by coupling to localized charge-frustrated systems under ice-rule local constraint

  title={Metal-insulator transition caused by coupling to localized charge-frustrated systems under ice-rule local constraint},
  author={Hiroaki Ishizuka and Masafumi Udagawa and Yukitoshi Motome},
  journal={Physical Review B},
We report the results of our theoretical and numerical study on electronic and transport properties of fermion systems with charge frustration. We consider an extended Falicov-Kimball model in which itinerant spinless fermions interact repulsively by U with localized particles whose distribution satisfies a local constraint under geometrical frustration, the so-called ice rule. We numerically calculate the density of states, optical conductivity, and inverse participation ratio for the models… 
6 Citations
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