Formation of an unexpected ordered two-dimensional Ag2Pb surfacealloy on Ag(111): A SXRD and STM study

Autor:	J. Dalmas, H. Oughaddou, C. Léandri, J.-M. Gay, G. Le lay, G. Tréglia, B. Aufray, O. Bunk, R.L. Johnson
Rok vydání:	2006
Předmět:	Diffraction Chemistry Alloy Synchrotron radiation General Chemistry engineering.material Condensed Matter Physics Crystallography Phase (matter) Monolayer Microscopy engineering General Materials Science Surface layer Superstructure (condensed matter)
Zdroj:	Journal of Physics and Chemistry of Solids. 67:601-604
ISSN:	0022-3697
Popis:	The deposition of 1/3 Pb monolayer at room temperature onto Ag(111) leads to a p ( 3 × 3 ) R 30 ∘ superstructure. We present here a detailed structural study of this surface structure by Synchrotron Radiation Surface X-Ray Diffraction (SXRD) and Scanning Tunnelling Microscopy (STM). Unexpectedly the Pb atoms are embedded into the silver top surface layer forming an original, ordered, Ag2Pb surface alloy despite the strong tendency of the system to phase separate.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::46ee915108226586926fbc94b4eca7b5 https://doi.org/10.1016/j.jpcs.2005.10.147 Zobrazit plný text záznamu Full Text from ScienceDirect