caa a22 4500 46789194X CHVBK 20180406152751.0 cr unu---uuuuu 170328e20060501xx s 000 0 eng 10.1007/s10955-006-9054-6 doi (NATIONALLICENCE)springer-10.1007/s10955-006-9054-6 Wojtkiewicz Jacek Department for Mathematical Methods in Physics, Hoza 74, 00-682, Warsaw, Poland aut Phase Diagram of the Two-dimensional t - t ′ Falicov-Kimball Model [Elektronische Daten] [Jacek Wojtkiewicz] The ground-state phase diagram of the two-dimensional Falicov-Kimball model with nearest-neighbour and next-nearest-neighbour hoppings has been studied in the perturbative regime where hoppings are small compared with the on-site Coulomb interaction. The phase diagram at fourth-order exhibits a richer structure than the one of the ordinary Falicov-Kimball model. Springer Science + Business Media, Inc., 2006 Tight-binding models nationallicence Falicov-Kimball model nationallicence Perturbation expansions nationallicence Phase diagrams nationallicence Pirogov-Sinai theory nationallicence Journal of Statistical Physics Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 123/3(2006-05-01), 585-600 0022-4715 123:3<585 2006 123 10955 https://doi.org/10.1007/s10955-006-9054-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10955-006-9054-6 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Wojtkiewicz Jacek Department for Mathematical Methods in Physics, Hoza 74, 00-682, Warsaw, Poland aut NATIONALLICENCE 773 0- Journal of Statistical Physics Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 123/3(2006-05-01), 585-600 0022-4715 123:3<585 2006 123 10955 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer