UNSPECIFIED (1994) ADSORPTION OF SB ON AG(111) STUDIED USING LEED, AES AND XPS. In: 13th European Conference on Surface Science (ECOSS-13), AUG 30-SEP 04, 1993, UNIV WARWICK, ARTS CTR, WARWICK, ENGLAND.

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Abstract

The growth of Sb overlayers on Ag(111) has been studied using LEED, AES and XPS from sub-monolayer to multilayer coverages as a function of deposition temperature. At room temperature, growth was found to be by the Franck-van der Merwe (layer-by-layer) mechanism. Two distinct ordered structures were seen after annealing of the deposited layers, a (square-root 3 x square-root 3)R30-degrees at low coverage and a (2 square-root 3 x 2 square-root 3)R30-degrees at coverages above 1.5 monolayers. The first of these structures is thought to involve substituted Sb into the first layer of Ag atoms, forming a surface alloy. The second structure may be due to the formation of an Sb overlayer on top of the Sb substituted layer. Small core level shifts were observed in the XPS spectra of the deposited surfaces.

Item Type:	Conference Item (UNSPECIFIED)
Subjects:	Q Science > QD Chemistry Q Science > QC Physics
Journal or Publication Title:	Surface Science
Publisher:	ELSEVIER SCIENCE BV
ISSN:	0039-6028
Date:	20 April 1994
Volume:	309
Number:	Part A
Number of Pages:	6
Page Range:	pp. 101-106
Publication Status:	Published
Title of Event:	13th European Conference on Surface Science (ECOSS-13)
Location of Event:	UNIV WARWICK, ARTS CTR, WARWICK, ENGLAND
Date(s) of Event:	AUG 30-SEP 04, 1993
URI:	http://wrap.warwick.ac.uk/id/eprint/20711

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