Nekrasov, I. A.I. A.NekrasovHeld, KathrinKathrinHeldKeller, G.G.KellerKondakov, D. E.D. E.KondakovPruschke, T.T.PruschkeKollar, M.M.KollarAndersen, Olav M.Olav M.AndersenAnisimov, V. I.V. I.AnisimovVollhardt, D.D.Vollhardt2018-11-072018-11-072006https://resolver.sub.uni-goettingen.de/purl?gro-2/38569LDA+DMFT, the merger of density functional theory in the local density approximation and dynamical mean-field theory, has been mostly employed to calculate k-integrated spectra accessible by photoemission spectroscopy. In this paper, we calculate k-resolved spectral functions by LDA+DMFT. To this end, we employ the Nth order muffin-tin (NMTO) downfolding to set up an effective low-energy Hamiltonian with three t(2g) orbitals. This downfolded Hamiltonian is solved by DMFT yielding k-dependent spectra. Our results show a renormalized quasiparticle band over a broad energy range from -0.7 eV to +0.9 eV with small "kinks" discernible in the dispersion below the Fermi energy.journal_article10.1103/PhysRevB.73.155112000237155100036