Dresden 2014 – scientific programme
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TT: Fachverband Tiefe Temperaturen
TT 56: Focus Session: Electronic Properties of Spin-Orbit Driven Oxides
TT 56.4: Topical Talk
Wednesday, April 2, 2014, 11:15–11:45, HSZ 03
Novel Magnetic States in Spin-Orbit Coupled Mott Insulators — •Giniyat Khaliullin — Max-Planck-Institut FKF, Stuttgart
In late transition metal compounds such as Ir, Rh, Os oxides, large spin-orbit coupling entangles the spin and orbital subspaces and may lead to unusual interactions and ground states. In this talk, after some basic introduction to spin-orbital physics, the following topics will be addressed: (i) Magnetic ordering and excitations in single layer Sr2IrO4 and bilayer Sr3Ir2O7 iridium perovskites; (ii) Exchange interactions in a hexagonal lattice iridates, Kitaev-Heisenberg model, its phase diagram including spin-liquid states; (iii) Excitonic magnetism and spin-orbit driven magnetic QCP in Van Vleck-type d4 Mott insulators.