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Valence fluctuations and quasiparticle multiplets in plutonium chalcogenides and pnictides
The spectra of Pu chalcogenides and pnictides are computed with dynamical mean field theory within the local density approximation (LDA+DMFT) and interpreted with the aid of valence histograms and slave-boson calculations. We find the chalcogenides are mixed-valent $({n}_{f}=5.2)$ materials with a strongly $T$-dependent low-energy density of states and a triplet …