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TT: Fachverband Tiefe Temperaturen

TT 42: Correlated Electrons: Frustrated Magnets - Strong Spin-Orbit Coupling 2

TT 42.4: Vortrag

Mittwoch, 22. März 2017, 10:15–10:30, HSZ 304

Spectroscopic investigations of a novel Iridate - a possible reference material for Kitaev physics — Philipp Benrath¹, Angela Möller¹, Vladimir Gnezdilov^2,3, and •Peter Lemmens² — ¹IAC-AC, JGU Mainz — ²TU-BS, Braunschweig — ³ILTP, Kharvov

In Na₂Ir(OH)₆ there exist a D3d point group symmetry with an uniaxial threefold symmetry of the iridium complex. In our search for nonabelian anyons (fractionalized excitations)[1] we performed a systematic Raman scattering investigation of its excitation spectrum. Evidence for a symmetry reduction and its relation to other distorted Kitaev materials are discussed.

Work supported by RTG-DFG 1952/1, the Laboratory for Emerging Nanometrology, TU Braunschweig, and NTH Contacs in Nanosystems.

[1] A. Glamazda, P. Lemmens, S.-H. Do, K.-Y. Choi, Nature Commun. 7, 12286 (2016).