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Dresden 2014 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 79: Correlated Electrons - Poster Session

TT 79.57: Poster

Wednesday, April 2, 2014, 15:00–19:00, P2

Interplay of Spin-Orbit Coupling and Electron Correlations in Iridate Compounds — •Alexander Hampel and Frank Lechermann — 1. Institut für Theoretische Physik, Universität Hamburg, Germany

This work deals with the investigation of the electronic structure of perovskite iridates, such as Ba2IrO4. Recent experiments exploring different iridate compounds found out that the cooperation of strong electron correlations and spin-orbit coupling plays an important role in the correct description of their physical behaviour. The reason for this are large spin-orbit interaction energies in the 5d transition metal oxides, which have the same order of magnitude as the local Coulomb interaction.
We apply a combination of density functional theory (DFT) with explicit many-body methods to handle the realistic electronic correlations within the relativistic environment. More explicitly, the mixed-basis pseudopotential approach is allied with rotational-invariant slave bosons in order to address the intriguing correlated spin-orbit physics.

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