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Berlin 2015 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 30: Correlated Electrons: Spin Systems and Itinerant Magnets – Frustrated Magnets 3 (jointly with MA)

TT 30.8: Vortrag

Dienstag, 17. März 2015, 11:30–11:45, H 0110

Raman scattering on the Honeycomb Lattice Iridates A2IrO3 (A=Na,Li)Vladimir Gnezdilov1,2, Robert Bohle1, •Peter Lemmens1, Soham Manni3, Friedrich Freund3, and Philipp Gegenwart31IPKM, TU-BS, Braunschweig — 2ILTPE NAS, Ukraine — 3IP, Univ. Augsburg

Inelastic light scattering studies on single crystals of (Na1−xLix)2(Ir1−yTiy)O3 (x = 0, 0.1, 0.2; y = 0, 0.025) show a polarization and temperature dependent broad band as well as phonon anomalies. We discuss these observations with respect to the relevance of the Kitaev-Heisenberg model and Majorana Fermions for A2IrO3.

Work supported by RTG-DFG 1953/1, Metrology for Complex Nanosystems.

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