Island Dissolution Phase Transition in a Chemisorbed Layer.

Abstract

A phase transition has been observed in O chemisorbed on W(110) at low coverages, with a transition temperature about 250 K lower than that observed for saturation coverage W(110)p(2 x 1) - O. This transition is interpreted in terms of two-dimensional dissolution of islands. A fit to lattice gas models for both low and saturation coverage allows separate determination of the attractive and repulsive adatom-adatom interactions, and gives values of -0.069eV/atom and 0.15eV/atom respectively. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jul 27, 1977
Accession Number
ADA042444

Entities

People

  • G.-c. Wang
  • M. G. Lagally
  • T.-m. Lu

Organizations

  • University of Wisconsin–Madison

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Crystal Lattices
  • Crystal Structure
  • Diffraction
  • Electron Diffraction
  • Intensity
  • Materials
  • Materials Science
  • Military Research
  • Phase
  • Phase Transformations
  • Security
  • Transition Temperature
  • Transitions
  • Two Dimensional
  • United States
  • Universities
  • Wisconsin

Readers

  • Materials Science and Engineering.
  • Quantum Chemistry
  • Thin Film Deposition Science.