2000/06/30 by V. Zlatic', J. K. Freericks
Physics and Astronomy · #cond-mat.str-el
published as Open Problems in Strongly Correlated Electron Systems, edited by J. Bonca, P. Prelovsek, A. Ramsak, and S. Sarkar, (Kluwer, Dordrecht, 2001) p. 371--380 [NATO Science Series, II. Mathematics, Physics, and Chemistry--Vol. 15] · (10 pages, 7 figures, ReVTeX and epsfig, to appear in Proceedings of NATO conference, BLED, 2000)
arxiv created 2000/06/30 · arxiv updated 2009/11/30
The anomalous behavior of YbInCu4 and similar compounds is modeled by the exact solution of the spin one-half Falicov-Kimball model in infinite dimensions. The valence-fluctuating transition is related to a metal-insulator transition caused by the Falicov-Kimball interaction, and triggered by the change in the f-occupancy.