Device Nanofabrication and Quantum Electronic Transport in Twisted van der Waals Heterostructures

Abstract

In this project I will learn how to fabricate twisted van der Waals heterostructures using mechanical exfoliation and pick up & transfer methods. I will also learn how to perform device nanofabrication using modern electron beam lithography techniques. The devices will consist of heterostructures built by assembling two van der Waals materials on top of each other with a small angle of rotation between the two crystalline lattices. These exhibit a range of interesting quantum phases and electronic behaviors, such as correlated insulating states, superconductivity, nematicity, etc. I will investigate this behavior via quantum electronic transport experiments at low temperature and variable magnetic field.