Change of Surface Electronic States Induced by Li and K Adsorption on the Si(111)7×7 Structure
- 1 September 1990
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 29 (9R)
- https://doi.org/10.1143/jjap.29.1773
Abstract
The change of the surface electronic states induced by Li and K adsorption on the Si(111)7×7 surface has been studied using angle-resolved ultraviolet photoelectron spectroscopy. It has been found that with increasing Li coverage, the photoemission intensity of the surface states due to dangling bonds of the 7×7 structure decreases monotonously. However, for K adsorption, the photoemission intensity of the metallic surface state increases at the initial stage. This implies that the 4s electron of a K atom is transferred into the half-filled surface state of the 7×7 structure.Keywords
This publication has 21 references indexed in Scilit:
- Angle-resolved photoelectron-spectroscopy study of the Si(001)2×1-K surfacePhysical Review B, 1987
- Si(111)-7×7 surface: Energy-minimization calculation for the dimer–adatom–stacking-fault modelPhysical Review B, 1987
- Origin of surface states on Si(111)(7×7)Physical Review Letters, 1986
- Surface Electronic Structure of Si (111)-(7×7) Resolved in Real SpacePhysical Review Letters, 1986
- Bulk and surface electronic structures of Si(111)2×1 and Si(111)7×7 studied by angle-resolved photoelectron spectroscopyPhysical Review B, 1985
- Photoemission of Cs Valence Electrons from a Cs Monolayer on Si(111) 2×1Japanese Journal of Applied Physics, 1984
- Electronic structure of the annealed Ge(111) and Si(111) surfaces: Similarities in local bondingPhysical Review B, 1981
- Relationship between Atomic Structure and Electronic Properties of (111) Surfaces of SiliconPhysical Review Letters, 1972
- Atomic theory of work function variation in alkali adsorption on transition metalsSolid State Communications, 1972
- Theory of Electrical Double Layers in Adsorbed FilmsPhysical Review B, 1935