Berlin 2015 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 100: Correlated Electrons: Other Materials
TT 100.1: Vortrag
Donnerstag, 19. März 2015, 15:00–15:15, H 3005
The effects of spin-orbit coupling and electron correlations on the Fermi surface of Sr2RuO4 — •Guoren Zhang1, Evgeny Gorelov1, and Eva Pavarini1,2 — 1Institute for Advanced Simulation, Forschungszentrum Jülich, D-52425, Jülich, Germany — 2JARA High-Performance Computing
In this work we investigate the effects of spin-orbit coupling (SOC) and electron correlations on the Fermi surface (FS) of Sr2RuO4. We first study the spin-orbit coupling effects by comparing the FSs obtained by local-density approximation (LDA) and LDA+SOC calculations. Then, to study the effects of electron correlations, we perform LDA + dynamical mean field theory method (DMFT) and LDA+SOC+DMFT calculations. Our LDA and LDA+SOC results are consistent with previous theoretical works [1, 2]. Our LDA+SOC+DMFT results show that, in order to reproduce the experimental FS [3], it is key to include both effects.
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F. Ronning, D. L. Feng, C. Kim, Z. X. Shen, T. Kimura, Y. Tokura,
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