000100833 001__ 100833
000100833 005__ 20190316233935.0
000100833 02470 $$2ISI$$aA1997WF90900003
000100833 037__ $$aARTICLE
000100833 245__ $$aGround states and flux configurations of the two dimensional Falicov-Kimball model
000100833 269__ $$a1997
000100833 260__ $$c1997
000100833 336__ $$aJournal Articles
000100833 520__ $$aThe Falicov-Kimball model is a lattice model of itinerant spinless fermions ("electrons") interacting by an on-site potential with classical particles ("ions"). We continue the investigations of the crystalline ground states that appear for various filling of electrons and ions for large coupling. We investigate the model for square as well as triangular lattices. New ground states are found and the effects of a magnetic flux on the structure of the phase diagram are studied. The flux phase problem where one has to find the optimal flux configurations and the nuclei configurations is also solved in some cases. Finally we consider a model where the fermions are replaced by hard-core bosons. This model also has crystalline ground states. Therefore their existence does not require the Pauli principle, but only the on-site hard-core constraint for the itinerant particles.
000100833 700__ $$aGruber, C
000100833 700__ $$0241807$$g107423$$aMacris, N
000100833 700__ $$aMessager, A
000100833 700__ $$aUeltschi, D
000100833 773__ $$j86$$tJournal of Statistical Physics$$q57-108
000100833 8564_ $$uhttps://infoscience.epfl.ch/record/100833/files/fulltext.pdf$$zn/a$$s1786898
000100833 909C0 $$xU10432$$0252058$$pLTHC
000100833 909CO $$qGLOBAL_SET$$pIC$$ooai:infoscience.tind.io:100833$$particle
000100833 937__ $$aLTHC-ARTICLE-2007-017
000100833 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000100833 980__ $$aARTICLE