Existence of two adsorbed states for K on the Si(100)(2×1) surface: A thermal desorption study
- 15 July 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 42 (3) , 1868-1871
- https://doi.org/10.1103/physrevb.42.1868
Abstract
Thermal desorption spectroscopy (TDS) was applied to the investigation of the adsorbed state of K on the Si(100)(2×1) surface. Two K desorption peaks were observed and were attributed to the desorption of K atoms from two different chemisorbed states on the Si(100)(2×1) surface. The results strongly suggest that the fractional saturation coverage of K atoms in the chemisorbed state is 1. The coverage dependences of the peak temperatures and shapes of the TDS spectra are discussed.Keywords
This publication has 16 references indexed in Scilit:
- New aspects in the oxidation kinetics of alkali-metal promoted group IV and III-V semiconductor surfacesSurface Science, 1989
- Layer resolved spectroscopy of potassium adsorbed on a Ru(001) surface: Photoemission and thermal desorption studyThe Journal of Chemical Physics, 1989
- Chemisorption bonding, site preference, and chain formation at the K/Si(001)2×1interfacePhysical Review B, 1989
- Silicon hydride etch products from the reaction of atomic hydrogen with Si(100)Surface Science, 1989
- Photoelectron diffraction study of Si(001) 2 × 1-K surface: Existence of a potassium double layerPhysical Review B, 1988
- Novel electronic properties of a potassium overlayer on Si(001)-(2×1)Physical Review Letters, 1986
- Theory of Surface Plasmons of the Alkali-Adatom-Chain Model on Si(100)2×1 SurfacesPhysical Review Letters, 1984
- Measurement of Overlayer-Plasmon Dispersion in K Chains Adsorbed on Si(001)2×1Physical Review Letters, 1984
- Structural and electronic model of negative electron affinity on the Si/Cs/O surfaceSurface Science, 1973
- Binding and charge transfer associated with alkali metal adsorption on single crystal nickel surfacesSurface Science, 1970