Abstract
We measured the glancing angle (0g) dependence of the X-ray emission from Si(111)-√3x √3-Ag and α - √3x √3Au surfaces during Reflection High Energy Electron Diffraction observation under the Total Reflection Angle X-ray Spectroscopy condition. The characteristic X-rays AgL and AuM decreased according to 1 /sinΘg. The function 1 /sinΘgis easily understood in terms of Ag and Au atoms located at the top layer of the surface. The SiK and the bremsstrahlung showed broad peaks around 8°. These trends of the curves are explained by an analysis using Monte Carlo electron trajectory simulation. By measuring the glancing angle dependence we can easily distinguish whether or not a specific kind of atom is confined at the top layer of the surface.
Original language | English |
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Pages (from-to) | L1503-L1505 |
Journal | Japanese Journal of Applied Physics |
Volume | 31 |
Issue number | 10 |
DOIs | |
Publication status | Published - 1992 Oct |
Keywords
- Depth distribution of atoms
- Electron trajectory in solid
- Metal on si(111)
- Rheed
- Traxs
- X-ray