Walker, Marc, Brown, M. G., Draxler, M., Dowsett, M. G., McConville, C. F. (Chris F.), Noakes, T. C. Q. and Bailey, P. (2011) Structural analysis of the Cu(100)–p(3)R45°–Sn surface using low and medium energy ion scattering spectroscopies. Surface Science, Vol.605 (No.23-24). pp. 1934-1940. doi:10.1016/j.susc.2011.07.004

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Abstract

The atomic structure of the Cu(100)-p(3√2× √2)R45°-Sn surface has been studied using medium energy ion scattering (MEIS), co-axial impact collision ion scattering spectroscopy (CAICISS), low energy electron diffraction (LEED) and Auger electron spectroscopy (AES). The p(32×2)R45° reconstruction was observed with LEED following the deposition of 0.42 ML of Sn from a Knudsen cell on to the clean Cu(100) surface. The existence of sub-surface Sn atoms was immediately ruled out by the lack of blocking dips in the MEIS Sn scattered yield. Previously reported Sn overlayer and Cu-Sn surface layer alloy models were tested against the medium and low energy ion scattering data, with the best fit realised following structural optimization of the surface alloy model proposed by Pussi [K. Pussi et al., Surf. Sci. 549 (2004) 24]. Different out-of-plane shifts were observed for Sn atoms depending on their proximity to the missing Cu row. © 2011 Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics
Divisions:	Faculty of Science > Physics
Journal or Publication Title:	Surface Science
Publisher:	Elsevier BV
ISSN:	0039-6028
Official Date:	December 2011
Dates:	Date Event December 2011 Published
Volume:	Vol.605
Number:	No.23-24
Page Range:	pp. 1934-1940
DOI:	10.1016/j.susc.2011.07.004
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access

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