2003/02/26 by Wei-Guo Yin, Wei‐Guo Yin, W. N. Mei +4 · 2 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Dielectric #Electron #Exciton #Ferroelectricity #Physics #Physics of Superconductivity and Magnetism #Polaron #Quantum mechanics #Quantum, superfluid, helium dynamics #Quasiparticle #Scaling #Scattering #Superconductivity #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.68.075111
published as Physical Review B, 68, 075111 (2003). · 5 pages, 5 figures
arxiv created 2003/02/26 · openalex publication_date 2003/08/19 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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 novel electronic structures with bandwidth scaling with that of d--f excitons. Especially, in the two-dimensional case, we find that flat regions exist near the bottom of the quasiparticle band in a wide range of the d- and f-level energy difference.