Tutorial QT01—Magneto-Optical Properties of Excitons

Instructor: Andrey Chaves, Department of Physics, Federal University of Ceara

In this tutorial, we will demonstrate the use of magneto-PL measurements for a better understanding of the nature of excitonic peaks in two dimensional semiconductors and van der Waals heterostructures. We will provide an overview of current theoretical models for calculating excitonic states in monolayer semiconductors and van der Waals heterostructures, including those with lattice mismatch that produce moiré patterns. In this part, attendees will learn how to predict the energy of excitonic peaks and their Zeeman g-factors in the presence of perpendicular magnetic field. This information will then be used in the second part of the tutorial, where attendees will learn how to use g-factors obtained in magneto-PL experiments to help unravelling PL peaks in the spectra originating from different  exciton states (inter- and intra-layer, free or moiré-confined).

Tutorial Schedule