Theory of Surface Plasmons of the Alkali-Adatom-Chain Model on Si(100)2×1 Surfaces
- 23 July 1984
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 53 (4), 376-379
- https://doi.org/10.1103/physrevlett.53.376
Abstract
With the use of the random-phase approximation, we obtained the dispersion relation of the inter- and intra-surface-band plasmon of the parallel-rod model, which simulates the alkali-metal adatom chains on Si(100)2×1 surfaces. There are two interband plasmon modes: One corresponds to the polarization vertical to the surface and the other to the polarization vertical to both the rod axis and the surface normal. The results explain fairly well the plasmon modes of the Si(100)(2×1) K surface observed recently.Keywords
This publication has 6 references indexed in Scilit:
- Measurement of Overlayer-Plasmon Dispersion in K Chains Adsorbed on Si(001)2×1Physical Review Letters, 1984
- Electronic excitations in K monolayer adsorbed on Si(100) 2 × 1Surface Science, 1983
- Observation of the Plasmon Excitation in a Cs Overlayer on Si(100) 2×1Journal of the Physics Society Japan, 1982
- Plasmons in monolayer Na, K and Rb films adsorbed on Ni(100)Surface Science, 1979
- Structural and electronic model of negative electron affinity on the Si/Cs/O surfaceSurface Science, 1973
- Plasmon excitations of free and adsorbed thin metallic filmsPhysics Letters A, 1972