Abstract
A field ion-scanning tunneling microscope has been used to study the structure of the Na-induced Si(111)(3 X 1) surface. The STM images showed that the entire Si surface was uniformly covered with a single layer of the Na(3 X 1) structure. Upon further Na deposition onto this surface a well ordered Na multilayer was formed via Stranski-Krastanov growth mode. Tunneling spectroscopy performed on the surfaces at various Na coverages revealed that the first Na layer was insulating, but the insulator-metal transition of the Na overlayer occured in the second layer.
Original language | English |
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Pages (from-to) | 257-260 |
Number of pages | 4 |
Journal | Applied Surface Science |
Volume | 67 |
Issue number | 1-4 |
DOIs | |
Publication status | Published - 1993 Apr 2 |
ASJC Scopus subject areas
- Chemistry(all)
- Condensed Matter Physics
- Physics and Astronomy(all)
- Surfaces and Interfaces
- Surfaces, Coatings and Films