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Persistent URL	http://purl.org/net/epubs/work/30269
Record Status	Checked
Record Id	30269
Title	Aspects of layer-by-layer composition analysis using MEIS
Contributors	P Bailey (CCLRC Daresbury Lab.), TCQ Noakes (CCLRC Daresbury Lab.), CJ Baddeley (St. Andrews U.), G van der Laan (CCLRC Daresbury Lab.), D Brown (Warwick U.), PD Quinn (Warwick U.), DP Woodruff (Warwick U.)
Abstract	The shadowing/blocking characteristics of medium energy ion scattering allow a precise deduction of the layer-by-layer composition of alloy crystal surfaces. The technique relies on an accurate alignment of the ion beam with known crystallographic directions to restrict the incoming beam to illuminate just the topmost one, two or three or more layers. Further layer specificity is bestowed by utilising outgoing geometries that block ions from all but the top one, two, etc., layers respectively. The size of shadow cones associated with medium energy hydrogen and helium ions is ideal for this application. A plot of the averaged experimental yields against simulated yields for several different systems implies an inconsistency in the technique. Possible explanations for this are discussed and a clarifying experiment is suggested.
Organisation	CCLRC , SND , MEIS
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Language	English (EN)

Type	Details	URI(s)	Local file(s)	Year
Journal Article	Curr. Appl. Phys. 3, no. 1 (2003): 89-92.	doi:10.1016/S1567-1739(02)00242-0		2003