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Berlin 2024 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 18: Superconductivity: Poster

TT 18.9: Poster

Montag, 18. März 2024, 15:00–18:00, Poster C

Revisiting spin-orbit coupling and correlations in Sr2RuO4 by QSGW — •Weiyi Guo1, Christoph Friedrich2, and Irene Aguilera11Institute of Physics, University of Amsterdam, 1090 GL, Amsterdam, The Netherlands — 2Peter Grünberg Institute (PGI-1) and Institute for Advanced Simulation (IAS-1), Forschungszentrum Jülich and JARA, 52425 Jülich, Germany

The superconductor Sr2RuO4 exhibits strong spin-orbit coupling (SOC). Extensive theoretical and experimental studies make Sr2RuO4 a good testbed for ab-initio many-body methods for the simulation of the electronic structure. We demonstrate the Fermi surface and quasiparticle band topology from QSGW+SOC, how it improves the DFT+SOC results, and the general agreement between simulation and experiments. We also discuss a possible application of GW+(E)DMFT to the system.

Keywords: Ruthenates; GW; DMFT; Superconductivity; DFT

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DPG-Physik > DPG-Verhandlungen > 2024 > Berlin