Speaker
Description
1st TIMES Workshop joint with ETSF Real-Time collaboration-team meeting
Torsten Geirsson
Supervisor: Alejandro Molina-Sánchez
The CrSBr van der Waals layered material is a magnetic semiconductor which has gained attention due to its unique magnetic and optical properties. It is air-stable and allows for manipulation of its magnetic order with a small external field, positioning it as a promising candidate for magnonics applications. In this context, CrSBr can enable energy-efficient information transfer through coherent magnons. Information about these low-energy magnetic excitations could potentially be accessed optically through their coupling with excitons, which possess higher excitation energies, making the exciton-magnon interaction an active area of research.
As part of the first workshop of the TIMES network, we will present our latest work on first-principle studies of this material in both bulk and monolayer forms. This includes computational studies of the ground state properties using density functional theory, as well as excited state properties using many-body perturbation theory. Out of the excited state properties, we investigate the excitons using the Bethe-Salpeter equation and real-time simulations. Future research will explore ultrafast excitonic dynamics and magnon-exciton coupling in this material.