Parkinson, G. S., Hentz, A., Quinn, P. D., Window, A. J. (Amanda J.), Woodruff, D. P., Bailey, P. and Noakes, T. C. Q. (2007) Methylthiolate-induced reconstruction of Ag(111) : A medium energy ion scattering study. Surface Science, Volume 601 (Number 1). pp. 50-57. doi:10.1016/j.susc.2006.09.007

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Abstract

Medium energy ion scattering (MEIS), using 100 keV H+ incident ions, has been used to investigate the structure of the Ag(111)(root 7 x root 7)R19 degrees-CH3S surface phase. The results provide the first direct evidence that this structure does involve substantial reconstruction of the Ag surface layer. The measured absolute scattered ion yields and blocking curves are in generally good agreement with a specific structural model of the surface based on a reconstructed layer containing 3/7 ML Ag atoms, previously suggested on the basis of scanning tunnelling microscopy (STM) and normal incidence X-ray standing wave (NIXSW) studies. However, the MEIS data indicate that any rumpling of the thiolate layer, is small, and probably <= 0.2 angstrom. This value is smaller than the amplitude suggested in the STM and NIXSW studies, but could be entirely consistent with the earlier experimental data.

Item Type:	Journal Article
Subjects:	Q Science > QD Chemistry Q Science > QC Physics
Divisions:	Faculty of Science > Physics
Journal or Publication Title:	Surface Science
Publisher:	Elsevier BV
ISSN:	0039-6028
Official Date:	1 January 2007
Dates:	Date Event 1 January 2007 Published 26 September 2006 Available 1 September 2006 Accepted 17 July 2006 Submitted
Volume:	Volume 601
Number:	Number 1
Number of Pages:	8
Page Range:	pp. 50-57
DOI:	10.1016/j.susc.2006.09.007
Status:	Peer Reviewed
Publication Status:	Published

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