Host: The Japan Society of Vacuum and Surface Science
Host-guest system has been used as a molecualr machine, which shape can be changed by external stimuli in solution and bulk crystals. Here we studied on-surface construction of host-guest molecular system grown on an atomically flat and clean noble metal surface using low-temperature scanning tunneling microscopy (STM) and spectroscopy (STS) as well as ultraviolet photoemission spectroscopy (UPS) in ultrahigh vacuum.