Dr. Jia-xin Yin is currently a Postdoctorial Researcher in Prof. Zahid Hasan's team in Princeton University, USA, and focuses on the scanning tunneling microscopy of emergent topological matter, including topological magnets and superconductors. He received his Ph.D. degree in 2016 from Institute of Physics, CAS, under Prof. Hong Ding and Prof. Shuheng Pan. In 2015, he observed a Majorana-like zero-energy mode in Fe(Te,Se), which simulated theoretical and experimental confirmation of nontrivial topology in iron-based superconductors. Recently, he has developed vector magnetic field based scanning tunneling microscopy technique to observe Chern toplogical phases and many-body effects in several quantum magnets.