Regensburg 2019 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 33: Focus Session: Topology in 3D Reciprocal Space: Beyond Dirac and Weyl Quasiparticles (joint session TT/MA)

Mittwoch, 3. April 2019, 15:00–18:15, H2

Topological Dirac and Weyl semimetals are currently in focus of condensed-matter research. The ultra-relativistic electrons in these systems manifest themselves in experimental probes in many very unusual ways, such as chiral currents, hydrodynamic electron flows, and chiral optical response. Theory and experiment go further and offer even more exotic topological phases, which have no analogies in high-energy physics. Among the recent discoveries are Lorentz-invariance breaking quasiparticles, multi-Weyl semimetals, and topological phases in non-electronic systems.

Organized by: Artem Pronin (Universität Stuttgart), Claudia Felser (MPI-CPfS Dresden), Martin Dressel (Universität Stuttgart)

15:00 MA 33.1 Hauptvortrag: Novel optical and electrical responses in topological semimetals — •Joel Moore
15:30 MA 33.2 Hauptvortrag: Beyond the elementary particles and the 10-fold classification of non-interacting topological phases — •Alexey Soluyanov
16:00 MA 33.3 Hauptvortrag: Direct optical detection of Weyl fermion chirality in a topological semimetal — •Nuh Gedik
  16:30 15 min. break.
16:45 MA 33.4 Hauptvortrag: Evidence for an axionic charge density wave in the Weyl semimetal (TaSe4)2I — •Johannes Gooth
17:15 MA 33.5 Hauptvortrag: Investigations of Dirac/Weyl semimetals under external stimuli — •Ece Uykur
17:45 MA 33.6 Optical conductivity studies of topological nodal semimetals — •Artem V. Pronin, David Neubauer, Micha B. Schilling, Felix Hütt, Martin Dressel, Alexander Yaresko, Leslie M. Schoop, Chandra Shekhar, and Claudia Felser
18:00 MA 33.7 Thin-film investigations of 3D Dirac fermions in antiperovskite compounds — •Dennis Huang, Hiroyuki Nakamura, Eslam Khalaf, Pavel Ostrovsky, Kathrin Müller, Ulrich Starke, Alexander Yaresko, and Hidenori Takagi
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