Deposition of silver on the Pt(100)-hex surface: Kinetic control of alloy formation and composition by surface reconstruction

Matthias Batzill, Bruce E. Koel

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

Silver deposition on the Pt(100)-hex surface at 300 K leads to formation of a disordered Pt20Ag80 alloy in the first monolayer. This is due to lifting of the Pt(100)-hex-reconstruction which expels 20% of a monolayer of excess Pt atoms out of hex-reconstruction into the growing Ag film. Such mixing in the first monolayer may be expected generally for film growth on reconstructed surfaces at low temperatures. Our results are compared to a recently published article for Ag growth on Pt(110)-(2×1) surfaces [Surf. Sci. 478 (2001) L345]. For this system as well we suggest that a disordered monolayer-alloy forms with a Pt50Ag50 stoichiometry, instead of Ag growth proceeding by purely filling in the missing rows of the (2×1) reconstruction.

Original languageEnglish (US)
JournalSurface Science
Volume498
Issue number1-2
DOIs
StatePublished - Feb 1 2002
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces

Fingerprint Dive into the research topics of 'Deposition of silver on the Pt(100)-hex surface: Kinetic control of alloy formation and composition by surface reconstruction'. Together they form a unique fingerprint.

  • Cite this