We study a two-dimensional Hubbard model on a Penrose lattice by means of the real-space dynamical mean-field theory. Calculating the renormalization factor and density of states at each site, we discuss local electron correlations on the quasi-periodic structure. It is found that the renormalized metallic state appears near the Mott transition in the Penrose lattice system. We also address a spatially-dependent renormalization characteristic of the quasi-periodic lattice.
|Journal||Journal of Physics: Conference Series|
|Publication status||Published - 2014|
|Event||2014 International Conference on Strongly Correlated Electron Systems, SCES 2014 - Grenoble, France|
Duration: Jul 7 2014 → Jul 14 2014
ASJC Scopus subject areas
- Physics and Astronomy(all)