Flatband localization in the Anderson-Falicov-Kimball model
  The insulator-metal-insulator transition caused by a flatband is analyzed within dynamical mean-field theory using the Anderson-Falicov-Kimball model. We observe quantitative disagreement between the present approach and previous results. The presence of interactions enhances delocalization. 
A. M. C. Souza and H. J. Herrmann