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Midway evaluation in Physics - Masoumeh Kazemi

Midway evaluation in Physics - Masoumeh Kazemi - Available at University of Iceland
When 
Tue, 04/04/2023 - 10:00 to 12:00
Where 

Tæknigarður

Geysir - meeting room

Further information 
Free admission

Title of thesis: The interplay between excitonic and magnetic dynamics in 2D chromium trihalides

Doctoral candidate: Masoumeh Kazemi

Doctoral committee:
Dr.Ivan Shelykh, Professor at the Faculty of Physical Sciences, University of Iceland.(Supervisor)
Dr. Pavel Besarab. Linnaeus University, Kalmar, Sweden
Dr. Christian Schneider. University of Würzburg, Germany

Abstract
Novel 2D material CrI3 reveals unique combination of 2D ferromagnetism and robust excitonic response. We demonstrate that the possibility of the formation of magnetic topological defects, such as Néel skyrmions, together with large excitonic Zeeman splitting, leads to giant scattering asymmetry for excitons, which is the necessary prerequisite for the excitonic anomalous Hall effect. In addition, as bright excitons in ferromagnetic monolayers CrI3 efficiently interact with lattice magnetization, all-optical resonant magnetization control in this material becomes possible. In the thesis we develop a microscopic theory of these two effects.