Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2001-09-17
Acta Physica Polonica B 32, 3253--3266 (2001)
Physics
Condensed Matter
Strongly Correlated Electrons
5 pages, 5 figures
Scientific paper
The exact solution of the multi-component Falicov-Kimball model in infinite-dimensions is presented and used to discuss a new fixed point of valence fluctuating intermetallics with Yb and Eu ions. In these compounds, temperature, external magnetic field, pressure, or chemical pressure induce a transition between a metallic state with the f-ions in a mixed-valent (non-magnetic) configuration and a semi-metallic state with the f-ions in an integral-valence (paramagnetic) configuration. The zero-field transition occurs at the temperature Tv, while the zero-temperature transition sets in at the critical field Hc. We present the thermodynamic and dynamic properties of the model for an arbitrary concentration of d- and f-electrons. For large U, we find a MI transition, triggered by the temperature or field-induced change in the f-occupancy.
Freericks James K.
Zlatic Vinko
No associations
LandOfFree
Theory of valence transitions in Ytterbium and Europium intermetallics does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Theory of valence transitions in Ytterbium and Europium intermetallics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Theory of valence transitions in Ytterbium and Europium intermetallics will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-132399