I got bachelor degree at Harbin Institute of Technology in Harbin China and then I went to Singapore to get Msc degree at NUS. Now i'm a year2 PhD student at HKUST in HK. I'm involved in a research project about the quantum topological states in twisted WSe2 using a technique we set up by ourselves, which is microwave impedance microscopy (MIM). In recent years, twisted bilayer transition metal dichalcogenides (TMDs) have garnered significant atten-tion due to their unique topological properties. The realization of the double quantum spin Hall (QSH) effect indicates that materials with high spin Chern numbers can support multiple pairs of helical edge states. This phenomenon opens new avenues for spintronics and topological quantum computing.Microwave Impedance Microscopy (MIM) is a powerful local probe technique that enables high-resolution imaging of a material’s conductivity.