I am Zheng Jiangchang (Andrew), a PhD student in Physics at HKUST. My primary research interest lies in using scanning tunnelling microscopy (STM) to study flat band physics—particularly in kagome flat band systems (such as the FeSn and CsV₃Sb₅ families) and moiré flat band systems like magic-angle twisted bilayer graphene (MATBG). I am also fascinated by superconducting systems, charge density wave (CDW) phenomena, and defect physics. Through my work, I aim to contribute to a deeper understanding of these quantum materials and their potential applications. I also enjoy using STM to capture and collect microscopic images of various material surfaces.