Speaker: Siwei Wang, M.S. in Physics - Quantum Computing, UW-Madison
Abstract: Scanning Tunneling Microscopy (STM) and Spectroscopy (STS) are promising techniques to visualize magnetism in 2D material with high spatial resolution. The atomic resolution of STM/STS has demanded an atomically clean surface for measurement. Fabricating atomically clean devices with the air-and photo- sensitive CrI3 2D magnet has been the bottleneck ever since the project’s perception. Techniques such as tip cleaning and annealing are able push out the bubbles, polymers and other defects generated in the fabrication process. In this talk I will discuss the efforts towards developing parameters for these techniques on the atomic force microscope and anneal chamber.
