Alexina Ollier

During my PhD I studied energy dissipation of 2D materials and quantum systems using an Atomic Force Microscope in a pendulum geometry. The geometry allows to detect very tiny amount of energy dissipation that can be related to some quantum effects. With it I detected single electron charging over quantum dots on a free-standing graphene membrane as well as superlattice induced correlated insulating states and quantum oscillations at specific filling factors on a twisted bilayer graphene at the magic angle twist device. A magnetic tip experiment revealed a doping driven magnetic phase transition on a MoS2 monolayer device.