Dresden 2017 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 72: Correlated Electrons: Frustrated Magnets - General 2

TT 72.13: Vortrag

Donnerstag, 23. März 2017, 18:15–18:30, HSZ 204

Magnetism of correlated covalent insulator SrRu₂O₆ — Atsushi Hariki and •Jan Kuneš — TU Wien, Austria

We present a density functional + dynamical mean-field theory (LDA+DMFT) study of SrRu₂O₆. Considering the interaction strength this d³ material is on the correlated-metal side of the Mott transition. Special hopping pattern, however, gives rise to pronounced molecular orbital features and results in opening of a hybridization gap. The physics is governed by a competition between localization and covalency in a half-filled Hund’s material.