715 citations · 2.4k across the 12 of their papers we have counts for
10 papers
Low-energy models for correlated materials: bandwidth renormalization from Coulombic screening
M. Casula, Ph. Werner, L. Vaugier +3
We provide a prescription for constructing Hamiltonians representing the low energy physics of correlated electron materials with dynamically screened Coulomb interactions. The key…
d- and f-orbital correlations in the REFeAsO compounds
T. Miyake, L. Pourovskii, V. Vildosola +2
We estimate theoretically the strength of the local Coulomb interaction for the Fe 3d and Ce 4f shells in the REFeAsO compunds. In LaFeAsO and CeFeAsO we obtain values of the local…
Local moment versus Kondo behavior of the 4f-electrons in rare-earth iron oxypnictides
L. Pourovskii, V. Vildosola, S. Biermann +1
We consider the role played by the 4f states in the rare-earth oxyarsenides REOFeAs (RE=Ce,Pr,Nd) and the oxyphosphate CeOFeP, using a first-principles technique that combines the…
Spin-dependent Hedin's equations
Ferdi Aryasetiawan, Silke Biermann
Hedin's equations for the electron self-energy and the vertex were originally derived for a many-electron system with Coulomb interaction. In recent years it has been increasingly…
Self-consistency over the charge-density in dynamical mean-field theory: a linear muffin-tin implementation and some physical implications
L. V. Pourovskii, B. Amadon, S. Biermann +1
We present a simple implementation of the dynamical mean-field theory approach to the electronic structure of strongly correlated materials. This implementation achieves full self-…
The alpha-gamma transition of Cerium is entropy-driven
B. Amadon, S. Biermann, A. Georges +1
We emphasize, on the basis of experimental data and theoretical calculations, that the entropic stabilization of the gamma-phase is the main driving force of the alpha-gamma transi…