Probing the Band Structures of Bernal-Stacked Graphene Systems via Quantum Twisting Microscopy

Understanding the electronic band structure is fundamental to describing electron behavior in crystalline systems. While the tight-binding model effectively predicts non-interacting band structures in materials like graphene, it relies on analytically or numerically derived hopping parameters. In this talk, we present the development of a room-temperature Quantum Twisting Microscope (QTM) built from a commercially available Atomic Force Microscope (AFM) platform. This custom-built QTM allows us to probe and map the intricate band structures of monolayer to pentalayer Bernal-stacked graphene systems with high precision. Our QTM measurements allow us to extract the hopping parameters that match closely with theoretical predictions, providing a deeper understanding of the electronic phases in these systems.