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Accueil > Groupes scientifiques > Groupe Electrons Photons Surfaces > Dynamique d’électrons et de spin

2D semiconductors

par Rowe Alistair - publié le , mis à jour le

The physics of electron spin dynamics in multivalley semiconductors is a complex and rich field. In direct-gap multi-valley semi-conductors the spin-orbit interaction leads to a novel spin texturing of the Brillouin zone, while in indirect-dap multi-valley semiconductors the spin-orbit interaction couples the mechanical properties of the solid to the electron spin.

Contacts : Fabian Cadiz

In direct-gap multi-valley materials, our research focus on the study of the optical and transport properties of spins in atomically thin semiconductors such as MoS2 and their heterostructures. This includes the study of spin/valley dynamics through polarized-luminescence and spin-resolved cathodoluminescence, with an eye towards revealing original effects arising from the quantum nature of electrons at low temperatures and high densities. For more information contact Fabian Cadiz.

Optical micrograph (left) and schematics (righ) of a van der Waals heterostructure fabricated at PMC consisting of a few layers of graphite, hexagonal boron nitride and monolayer MoS2.