UNSPECIFIED. (2000) Is PEXAFS really PhD? Surface Science, 445 (2-3). pp. 300-308. ISSN 0039-6028

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Abstract

Scanned-energy mode photoelectron diffraction (PhD) measurements from the disordered chemisorption phase formed by oxygen on Cu(lll), over a wide range of emission directions, are compared with published surface extended X-ray absorption fine structure (EXAFS) data from the same system. The results show that so-called photoemission EXAFS ('PEXAFS') data, even when measured over a wide angular acceptance from a disordered surface, do not reflect the true EXAFS spectrum but are actually dominated by photoelectron diffraction. Quantitative analysis of these data leads to the conclusion that there are likely to be serious systematic errors in all previous PEXAFS analyses. (C) 2000 Published by Elsevier Science B.V. All rights reserved.

Item Type:	Journal Article
Subjects:	Q Science > QD Chemistry Q Science > QC Physics
Journal or Publication Title:	Surface Science
Publisher:	ELSEVIER SCIENCE BV
ISSN:	0039-6028
Official Date:	20 January 2000
Dates:	Date Event 20 January 2000 UNSPECIFIED
Volume:	445
Number:	2-3
Number of Pages:	9
Page Range:	pp. 300-308
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/13707

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