Kinetics of morphological changes in nanoscale metallic films followed by Auger electron spectroscopy

I. Beszeda, A. W. Imre, E. G. Gontier-Moya, F. Moya, D. L. Beke, A. Si Ahmed

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Thin metallic films deposited on oxide surfaces are subjected to surface forces which can induce morphological changes. Two cases are considered: (1) Ostwald ripening of particles and (2) beading of continuous films. These processes can be followed in-situ by Auger electron spectroscopy after an appropriate choice of the experimental conditions (temperature, thickness of the deposit and nature of the substrate). Examples are given for the gold/alumina system. The kinetics curves are analysed by invoking mass transfer surface diffusion of gold on alumina for the Ostwald ripening process, and surface self diffusion of gold for the beading process.

Original languageEnglish
Pages (from-to)269-274
Number of pages6
JournalDefect and Diffusion Forum
Volume216-217
Publication statusPublished - Jan 1 2003

Keywords

  • Beading
  • Ostwald-ripening
  • Surface diffusion
  • Thin films

ASJC Scopus subject areas

  • Radiation
  • Materials Science(all)
  • Condensed Matter Physics

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    Beszeda, I., Imre, A. W., Gontier-Moya, E. G., Moya, F., Beke, D. L., & Si Ahmed, A. (2003). Kinetics of morphological changes in nanoscale metallic films followed by Auger electron spectroscopy. Defect and Diffusion Forum, 216-217, 269-274.