Spectral functions of the Falicov-Kimball model with electronic ferroelectricity
Spectral functions of the Falicov-Kimball model with electronic ferroelectricity
We calculate the angular resolved photoemission spectrum of the Falicov-Kimball model with electronic ferroelectricity where d- and f-electrons have different hoppings. In mix-valence regimes, the presence of strong scattering processes between $d--f$ excitons and a hole, created by emission of an electron, leads to the formation of pseudospin polarons and …