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)
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