Project A04

 Susanne Candussio
Prof. Dr. Sergey Ganichev
 Stefan Hubmann
 Marcel Hild

Terahertz spectroscopy of Dirac fermion systems


Abstract

The aim of the project is to explore optoelectronic phenomena induced by THz radiation in graphene and topological insulators. We plan to study THz-induced resistance magneto-oscillations, X2-peak and Hall field-induced resistance oscillations, all recently observed by our group. Furthermore, we plan to observe time-reversal-symmetry preserving Hall effects in Dirac Fermion systems including the dynamic Hall effect and nonlinear Hall effect controlled by the non-trivial Berry phase. As a result, we expect to obtain insights into the underlying microscopic mechanisms of THz fields induced phenomena as well as to gain basic information on spin/charge THz transport in these materials.