2D Materials – Physics of
van der Waals [hetero]structures

Magnetotransport studies of interfacial interactions in van der Waals structures

Principal investigator

Jurgen H. Smet, Max-Planck-Institut für Festkörperforschung, Stuttgart

Abstract

This project intends to explore the impact interfacial interactions can have on quantum phases that appear in 2D materials. Two different types of van der Waals heterostructures will be explored. Heterostructures will either have superconducting NbSe₂ of varying thickness or magic angle twisted bilayer graphene as the main constituent. Either of these is then proximitized with some other 2D material in order to investigate how the superconducting phase or other interaction and correlation induced ground states, that appear in these systems, are affected or modified.

The primary probe will be magneto-transport down to mK-temperatures. Due to the air sensitivity, heterostructures are fabricated in a glovebox using a prepatterned hBN layer with embedded gold electrodes as a substrate. Samples can be transferred from the glove-box into the dilution refrigerator without any exposure to air.