Berlin 2012 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 45: Correlated Electrons: Poster Session

TT 45.98: Poster

Donnerstag, 29. März 2012, 15:00–19:00, Poster B

Response functions of correlated materials — •Amin Kiani Sheikhabadi¹ and Eva Pavarini^1,2 — ¹Institute for Advanced Simulation (IAS), Forschungszentrum Jülich, Jülich, Germany — ²Peter Grünberg Institut (PGI), Forschungszentrum Jülich, Jülich, Germany

Two-particle correlation functions provide a bridge between experimentals and theory. For strongly correlated systems, response functions can be determined with the LDA+DMFT method. In this approach the response functions are extracted from the local two-particle vertex and the local Green’s functions. Here we use such method and a Hirsch-Fye QMC impurity solver to calculate the response functions of correlated transition-metal oxides. As representative case, we present results for KCuF₃.