LEED AND STM STUDY OF CsON Cu(211)

M. Caragiu, Tl. Seyller, R. D. Diehl (), A. G. Norris, R. McGRATH and C. A. Muryn
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M. Caragiu: Physics Department, Penn State University, University Park, PA 16802, USA
Tl. Seyller: Physics Department, Penn State University, University Park, PA 16802, USA
R. D. Diehl: Physics Department, Penn State University, University Park, PA 16802, USA
A. G. Norris: Surface Science Centre, University of Liverpool, Liverpool, L69 3BX, UK
R. McGRATH: Surface Science Centre, University of Liverpool, Liverpool, L69 3BX, UK
C. A. Muryn: Chemistry Department, University of Manchester, Manchester, M13 9PL, UK

Surface Review and Letters (SRL), 1999, vol. 06, issue 05, 865-870

Abstract: A low-temperature (25 K) STM study of Cs adsorption on Cu(211) indicates that Cs forms variable-density structures which align along the step edges of the Cu(211) surface. The density of the overlayer increases with Cs coverage, forming a quasihexagonal c(2×2) structure at a coverage of 0.17. A dynamical LEED study of that structure at 130 K indicates that the Cs atoms are adsorbed on top of the Cu atoms in the center of the terraces, with a Cs–Cu nearest-neighbor distance of3.56± 0.04Å. This structure is accompanied by a significant rumpling of the Cu(211) surface.

Date: 1999
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DOI: 10.1142/S0218625X99000925

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