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HL: Fachverband Halbleiterphysik

HL 87: Low-dimensional systems: Topological order 2 (TT with DS/HL/MA/O)

HL 87.10: Talk

Thursday, March 19, 2015, 17:30–17:45, H 3010

Resonant scattering in the topological Dirac semimetal Cd₃As₂ — Vladimir Gnezdilov^1,2, Azat Sharafeev¹, •Peter Lemmens¹, Raman Sankar³, and Fangcheng Chou³ — ¹IPKM, TU-BS, Braunschweig — ²ILTPE NAS, Ukraine — ³CCMS, National Taiwan Univ., Taipei, Taiwan

In the symmetry-broken topological Dirac semimetal with strong spin-orbit coupling, Cd₃As₂, a pronounced temperature evolution of quasielastic electronic Raman scattering and resonant effects are observed. These effects are then compared to observations in topological insulators, as Bi₂Se₃.

Work supported by RTG-DFG 1953/1, Metrology for Complex Nanosystems and the Laboratory for Emerging Nanometrology Braunschweig, TU Braunschweig.