Abstract
The clean surface of TiC(001) prepared by flash-heating at ~ 1500°C shows a 1 × 1 ordered atomic structure. No gradient of chemical composition exists over the shallow surface region of ~15 Å. The work function of the clean surface is 3.8 ± 0.1 eV at room temperature. The features of oxygen chemisorption are similar to those of noble metals such as Ag and Cu; the average sticking probability is about two order of magnitude less than those of Ti and W metals, and the work-function change is also small. The oxygen atoms are preferentially chemisorbed on the carbon sites at the topmost layer, which is responsible for the small change in work function.
| Original language | English |
|---|---|
| Pages (from-to) | 312-330 |
| Number of pages | 19 |
| Journal | Surface Science |
| Volume | 102 |
| Issue number | 2-3 |
| DOIs | |
| Publication status | Published - 1981 Jan 2 |
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Condensed Matter Physics
- Surfaces and Interfaces
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Oshima, C., Aono, M., Tanaka, T., Kawai, S., Zaima, S., & Shibata, Y. (1981). Clean TiC(001) surface and oxygen chemisorption studied by work function measurement, angle-resolved X-RAY photoelectron spectroscopy, ultraviolet photoelectron spectroscopy and ion scattering spectroscopy. Surface Science, 102(2-3), 312-330. https://doi.org/10.1016/0039-6028(81)90032-7