368 citations · 3.6k across the 67 of their papers we have counts for
6 papers · 1 filter
Dynamical cluster approximation within an augmented plane-wave framework: Spectral properties of SrVO
Hunpyo Lee, Kateryna Foyevtsova, Johannes Ferber +3
We present a combination of local density approximation (LDA) with the dynamical cluster approximation (LDA+DCA) in the framework of the full-potential linear augmented plane-wave…
Variational cluster approach to the single impurity Anderson model
Martin Nuss, Enrico Arrigoni, Markus Aichhorn +1
We study the single impurity Anderson model by means of cluster perturbation theory and the variational cluster approach (VCA). An expression for the VCA grand potential for a syst…
Origin of the high Neel temperature in SrTcO3
J. Mravlje, M. Aichhorn, A. Georges
We investigate the origin of the high Neel temperature recently found in Tc perovskites. The electronic structure in the magnetic state of SrTcO3 and its 3d analogue SrMnO3 is calc…
Hallmark of strong electronic correlations in LaNiO: photoemission kink and broadening of fully occupied bands
Xiaoyu Deng, Michel Ferrero, Jernej Mravlje +2
Recent angular-resolved photoemission experiments on LaNiO reported a renormalization of the Fermi velocity of quasiparticles, a kink in their dispersion at eV an…
Reduced effective spin-orbital degeneracy and spin-orbital ordering in paramagnetic transition metal oxides: Sr2IrO4 vs. Sr2RhO4
Cyril Martins, Markus Aichhorn, Loig Vaugier +1
We discuss the notions of spin-orbital polarization and ordering in paramagnetic materials, and address their consequences in transition metal oxides. Extending the combined densit…
Importance of electronic correlations for structural and magnetic properties of the iron pnictide superconductor LaFeAsO
Markus Aichhorn, Leonid Pourovskii, Antoine Georges
We present calculations of structural and magnetic properties of the iron-pnictide superconductor LaFeAsO including electron-electron correlations. For this purpose we apply a full…