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Theory of valence transitions in ytterbium-based compounds
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Theory of valence transitions in ytterbium-based compounds
classification
cond-mat.str-el
keywords
compoundsfalicov-kimballtransitionanomalousbehaviorcausedchangedimensions
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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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