Electronic coherence in delta-Pu: a dynamical mean-field theory study
C A Marianetti1, K Haule, G Kotliar
1Lawrence Livermore National Laboratory, Livermore, CA, USA.
Abstract:
A combination of density functional theory and the dynamical mean-field theory (DMFT) is used to calculate the magnetic susceptibility, heat capacity, and the temperature dependence of the valence band photoemission spectra for delta-Pu. We predict that delta-Pu has a Pauli-like magnetic susceptibility near ambient temperature, as in experiment, indicating that electronic coherence causes the absence of local moments. Additionally, we show that volume expansion causes a crossover from incoherent to coherent electronic behavior at increasingly lower temperatures.
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