Jeff Davis, Chief investigator, Swinburne
The interactions between excitons and free electrons in 2D TMDCs lead to the formation of Fermi-polarons – that is, the excitons are dressed by the Fermi sea of electrons. Multidimensional Coherent Spectroscopy has been able to reveal interactions between such Fermi-polarons.
Here we examine how these interactions change as a function of electron density, and show that the attractive interactions become more significant at higher density.
About the presenters
CI Prof Jeff Davis utilises femtosecond laser pulses in the ultrafast science facility at Swinburne to modify the electronic band structure and realise Floquet topological insulators in 2D materials, in Research Theme 3. His work also contributes to Research Theme 2.