The growth of gold on (001) surfaces of α- and β-Mote2
Abstract
The growth of gold on (001) faces of α- and β-MoTe2 was studied by STM and TEM and it was shown that it is influenced by the different surface topographies of both polytypes. The morphology and orientation of gold islands on α (001) faces are typical for the growth on atomically smooth substrates with low surface free energies. Contrary, gold nucleates preferentially along the troughs parallel to the [010] direction of β-MoTe2 and with its (211) plane parallel to the substrate. At higher coverages however, new, more isotropically shaped islands are formed which tend to agglomerate into larger finger-like aggregates preferentially aligned along the [100] direction of β-MoTe2.
- Publication:
-
Surface Science
- Pub Date:
- June 1996
- DOI:
- 10.1016/0039-6028(95)01251-6
- Bibcode:
- 1996SurSc.356..130H
- Keywords:
-
- Electron microscopy;
- Epitaxy;
- Gold;
- Growth;
- Molybdenum tellurides;
- Scanning tunneling microscopy