Regensburg 2019 – scientific programme

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MA: Fachverband Magnetismus

MA 25: Topological Semimetals - Theory (joint session TT/MA)

MA 25.1: Talk

Wednesday, April 3, 2019, 09:30–09:45, H22

Semiclassical transport theory in Weyl semimetals beyond the relaxation time approximation — •Tobias Meng — Institute of Theoretical Physics, Technische Universität Dresden, 01062 Dresden, Germany

Transport is a frequently used tool to study the properties of topological semimetals. In Weyl semimetals, the negative magnetoresistance proportional to the square of the magnetic field is a famous example of such a transport property. However, experimental semimetals usually are multi band systems containing disorder. It is essential to further develop the description of transport in Weyl semimetals in order for theory to match the experimental progress. We report on some first steps towards this goal by extending the Boltzmann approach towards a more realistic description of disorder scattering, which in turn allows us to identify novel signatures of Berry phase physics in transport.