Many thanks for a lots of sympathies to us. We are all safe. We might need months to restart our research because of several damages of apparatus. But we will manage it.
Movie (1): A movie during the Weissenberg RHEED measurement for Si(111)√3x√3-Ag surface.
Movie (2): 3D Reciprocal map obtained by Weissenberg RHEED (Movie).
Fig. (3): Patterson map and the structure model for Si(111)√3x√3-Ag surface.