Golež, Denis Boehnke, Lewin Eckstein, Martin Werner, Philipp 2019-07-17 We study the dynamics of charge transfer insulators after photoexcitation using the three-band Emery model and a nonequilibrium extension of Hartree-Fock + EDMFT (extended dynamical mean field theory) and GW + EDMFT. While the equilibrium properties are accurately reproduced by the Hartree-Fock treatment of the ligand bands, dynamical correlations are essential for a proper description of the photodoped state. Photodoping leads to a renormalization of the charge transfer gap and to a substantial broadening of the bands. We calculate thetime-resolved photoemission spectrum and optical conductivity and find qualitative agreement with experiments. Our formalism enables the realistic description of nonequilibrium phenomena in materials with ligand bands. It provides a tool to explore the optical manipulation of interaction and correlation effects, including insulator-metal and magnetic transitions. application/pdf https://folia.unifr.ch/global/documents/308132 https://folia.unifr.ch/documents/308132/files/wer_dpc.pdf eng info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.100.041111 info:eu-repo/semantics/openAccess License undefined Physical Review B. - 2019, vol. 100, no. 4, p. 041111 info:eu-repo/classification/udc/53 Dynamics of photodoped charge transfer insulators http://purl.org/coar/resource_type/c_6501