Brydon, PhilipGulacsi, MiklosBishop, A.R.2015-12-130295-5075http://hdl.handle.net/1885/84871We examine the one-dimensional spinless Falicov-Kimball model extended by a hybridization potential between the localized and itinerant electron states. Below half-filling we find a crossover from a mixed-valence metal to an integer-valence phase-separated state with increasing on-site Coulomb repulsion. This crossover regime is characterized by local competition between the strong- and weak-coupling behaviour, manifested by the formation of an electronic polaron liquid. A phase diagram is presented and discussed in detail.200610.1209/epl/i2005-10509-02015-12-12