J. Phys. Colloques
Volume 49, Numéro C6, Novembre 198835th International Field Emission Symposium / 35éme Symposium International d'Emission de Champ
|Page(s)||C6-37 - C6-42|
J. Phys. Colloques 49 (1988) C6-37-C6-42
DEVELOPMENT OF AN STM-LEED-FIM COMBINATION SYSTEMG.L. XIAO, H.F. LIU, S.D. CHI, Z.Q. XUE, X. LI et T.T. TSONG
Physics Department, The Pennsylvania State University, University Park, Pennsylvania, PA 16802, U.S.A.
This is a progress report of an STM-LEED-FIM combination system we have been developing over the last one and a half years. The basic idea is to build an STM having its tip characterized and manipulated in the FIM mode, and also having its sample examined by low energy electron diffraction. At the present time, each individual system is in good operating conditions, but the STM is not yet installed into the vacuum system. We present here preliminary data of LEED on the (7×7) reconstructed Si (111) surface, and some STM images of surfaces of graphite, gold foil, gold crystal and platinum sheet with the STM operated in atmosphere. Atomic structures and atomic steps of the graphite (111) surfaces, larger structures of the metal surfaces, and columnar and particulate structures of rf sputtered thin Au films can be observed. The dynamical behavior of these surfaces at room temperature are also clearly seen.