Minoda, H.; Shimakura, T.; Yagi, K.; Meyer zu Heringdorf, Frank; Horn-von Hoegen, Michael:

Gold-induced faceting on a Si(hhm) surface (m/h=1.4-1.5) studied by SPA-LEED

In: Surface Science, Jg. 432 (1999) ; Nr. 1-2, S. 69-80
ISSN: 0039-6028
Zeitschriftenaufsatz / Fach: Physik
Fakultät für Physik » Experimentalphysik
Au-induced faceting on an Si(hhm) surface (m/h=1.4–1.5) was studied by in situ high-resolution low energy
electron diffraction at 750°C and 800°C. Au adsorption modifies surface morphology and (557), (556), (335), (5 5 11),
(113), (225) and (111) facets were formed at 750°C. The facet orientation depends on Au coverage and temperature
and changes of the surface free energy due to the change of Au coverage trigger the transformation of the initial
Si(hhm) surface into the hill-and-valley structures