Regensburg 2016 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 80: Correlated Electrons: (General) Theory 2

TT 80.7: Vortrag

Donnerstag, 10. März 2016, 17:45–18:00, H18

Theoretical calculation of photoemission spectra for Ir-based perovskites — •Ekaterina Plotnikova¹, Krzysztof Wohlfeld², Kateryna Foyevtsova³, and Jeroen van den Brink¹ — ¹IFW Dresden, Helmholtzstr. 20, 01069 Dresden, Germany — ²Institute of Theoretical Physics, University of Warsaw, Pasteura 5, PL-02093 Warsaw, Poland — ³University of British Columbia, 6224 Agricultural Road, Vancouver, BC V6T 1Z1 Canada

The layered iridates, Ba₂IrO₄ and Sr₂IrO₄, have recently attracted a lot of attention due to their structural and electronic similarities to the layered cuprates. Nevertheless, due to the strong spin-orbit coupling in the iridates, their properties upon electron or hole doping may be substantially different than those of the high-T_C cuprates. As a first step in understanding the physics of the doped iridates, we calculate the photoemission spectra of layered iridates using a polaronic model and the self-consistent Born approximation. We compare the obtained spectra to those calculated using the density functional theory and to the experimental spectra obtained by ARPES on Ba₂IrO₄ and Sr₂IrO₄.