The results of experiments on the epitaxyal growth of two dimensional islands of AuAl2 grown at gold deposition on the (111) crystal faces of as deposited Al films are reviewed. Formation of holes and scalloping of islands have been found on crystal faces exposed to various doses of oxygen before gold deposition. These holes, i.e., uncovered areas of Al crystal faces decorate the islands of adsorbates or oxide developed during oxygen exposure. This "negative decoration" phenomenon of thin film growth presents a new method suitable for studying the distribution and shape of the products of surface chemical interactions.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Mathematical Physics
- Condensed Matter Physics