Scanning Tunneling Microscopy of Stepped Single Crystal Surfaces of Gold.(Reannouncement with New Availability Information)

摘要

STM has been used to examine the high (11, 1, 1) surface of gold which is vicinalto the (100) oriented surface and makes an angle of 70 with it. The STM images exhibited a distribution of terrace widths ranging typically from 50 to 80 A with an occasional width of 120 A. For an ideal Au (I 1, 1, 1) surface, the minimum terrace width should involve six atoms with the expected terrace width of 6 x 2.9 = 17.4 A. The width of the smallest terrace examined on this surface was two to three times larger and the step similarly larger. This may be due to the restructuring of the surface during the flame annealing. The STM results for the Au(755) and Au(322) surfaces also show terraces which vary in length and show