Abstract
Na adsorption on the Si(100)(2 X 1) surface at the saturation coverage was investigated using field-ion scanning tunneling microscopy/spectroscopy (FI-STM/STS). The Na saturated surface has a (2 X 1) dimerized structure, similar to that of the clean (2 X 1) surface. In the STM image, each dimer is imaged to be bifurcated in the filled states. The STS measurement showed a large energy gap of approximately 1 eV, suggesting that the Na/Si(100)-(2 X 1) surface has the semiconductor-like electronic states of the surface. These observations are consistent with the double-layer model proposed by Kono's group and a recent theoretical study by Terakura's group.
| Original language | English |
|---|---|
| Pages (from-to) | 261-265 |
| Number of pages | 5 |
| 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
Fingerprint Dive into the research topics of 'Adsorption geometry of Na saturation on the dimerized Si(100)(2 X 1) surface'. Together they form a unique fingerprint.
Cite this
Hashizume, T., Motai, K., Lu, H., & Sakurai, T. (1993). Adsorption geometry of Na saturation on the dimerized Si(100)(2 X 1) surface. Applied Surface Science, 67(1-4), 261-265. https://doi.org/10.1016/0169-4332(93)90323-4