UNSPECIFIED (2001) Photoelectron diffraction structure determination of Cu(100)c(2 x 2)-N. Surface Science, 492 (1-2). pp. 1-10. ISSN 0039-6028

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Abstract

Using scanned-energy mode photoelectron diffraction of the N 1s photoemission, combined with multiple scattering modelling calculations, the structure of the Cu(1 0 0)c(2 x 2)-N has been investigated. While the results are broadly consistent with N adsorption in a fourfold coordinated hollow site, almost coplanar with the outermost layer, this model can only be fitted to the data with unphysically large vibrational amplitudes, strongly suggesting that some static adsorbate-induced substrate distortion is involved. The best-fit structure involves an unusual symmetry-lowering large amplitude (0.34 Angstrom) rumpling of the outermost Cu layer. This result is entirely consistent with the results of a recent scanning tunnelling microscopy study of this surface. (C) 2001 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
Date:	10 October 2001
Volume:	492
Number:	1-2
Number of Pages:	10
Page Range:	pp. 1-10
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/11655

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