Theory of valence transitions in ytterbium-based compounds

Details Theory of valence transitions in ytterbium-based compounds Theory of valence transitions in ytterbium-based compounds

2000-06-30

arxiv.org/abs/cond-mat/0006495v1

Open Problems in Strongly Correlated Electron Systems, edited by J. Bonca, P. Prelovsek, A. Ramsak, and S. Sarkar, (Kluwer, Do

Physics

Condensed Matter

Strongly Correlated Electrons

(10 pages, 7 figures, ReVTeX and epsfig, to appear in Proceedings of NATO conference, BLED, 2000)

Scientific paper

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.

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