Studies of alkali adsorption on Rh(111) using optical second-harmonic generation

H. W K Tom; C. M. Mate; X. D. Zhu; J. E. Crowell; Y. R. Shen; G. A. Somorjai

doi:10.1016/0039-6028(86)90768-5

Studies of alkali adsorption on Rh(111) using optical second-harmonic generation

H. W K Tom, C. M. Mate, X. D. Zhu, J. E. Crowell, Y. R. Shen, G. A. Somorjai

Physics, Applied Physics

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Abstract

Dramatic changes were observed in the optical second-harmonic generation from the Rh(111) crystal surface as the surface was covered with alkali atoms. For low alkali coverage, these changes are explained qualitatively in terms of optical transitions between alkali atomic-derived electronic states and, for high coverage, in terms of the plasmon resonance of the alkali layer. The results establish the surface specificity of second-harmonic generation to the topmost 1 or 2 atomic layers of alkali metals.

Original language	English (US)
Pages (from-to)	466-476
Number of pages	11
Journal	Surface Science
Volume	172
Issue number	2
DOIs	https://doi.org/10.1016/0039-6028(86)90768-5
State	Published - Jul 1 1986

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Condensed Matter Physics
Surfaces and Interfaces

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abstract = "Dramatic changes were observed in the optical second-harmonic generation from the Rh(111) crystal surface as the surface was covered with alkali atoms. For low alkali coverage, these changes are explained qualitatively in terms of optical transitions between alkali atomic-derived electronic states and, for high coverage, in terms of the plasmon resonance of the alkali layer. The results establish the surface specificity of second-harmonic generation to the topmost 1 or 2 atomic layers of alkali metals.",

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AU - Tom, H. W K

AU - Mate, C. M.

AU - Zhu, X. D.

AU - Crowell, J. E.

AU - Shen, Y. R.

AU - Somorjai, G. A.

PY - 1986/7/1

Y1 - 1986/7/1

N2 - Dramatic changes were observed in the optical second-harmonic generation from the Rh(111) crystal surface as the surface was covered with alkali atoms. For low alkali coverage, these changes are explained qualitatively in terms of optical transitions between alkali atomic-derived electronic states and, for high coverage, in terms of the plasmon resonance of the alkali layer. The results establish the surface specificity of second-harmonic generation to the topmost 1 or 2 atomic layers of alkali metals.

AB - Dramatic changes were observed in the optical second-harmonic generation from the Rh(111) crystal surface as the surface was covered with alkali atoms. For low alkali coverage, these changes are explained qualitatively in terms of optical transitions between alkali atomic-derived electronic states and, for high coverage, in terms of the plasmon resonance of the alkali layer. The results establish the surface specificity of second-harmonic generation to the topmost 1 or 2 atomic layers of alkali metals.

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ER -

Studies of alkali adsorption on Rh(111) using optical second-harmonic generation

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