The Relationship Between the Growth Shape of Three-Dimensional Pb Islands on Cu(100) and the Domain Orientation of the Underlying c(5v2xv2)R45 Degree Structure
The authors use low energy electron microscopy to identify a correlation between the growth shape of three-dimensional Pb islands on Cu(100)and the domain structure of the underlying Pb overlayer. Deposition of 0.6 monolayer Pb on Cu(100) produces a compressed c(2x2) overlayer, designated c(5{radical}2x{radical}2)R45{degree}, with periodic rows of anti-phase boundaries. They found that heating the surface to temperatures above 100 C coarsens the orientational domains of this structure to sizes that are easily resolved in the low energy electron microscope. Three-dimensional Pb islands, grown on the coarsened domains, are found to be asymmetric with orientations that correlate with the domain structure. Once nucleated with a preferred growth orientation, islands continue to grow with the same preferred orientation, even across domain boundaries.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 759849
- Report Number(s):
- SAND2000-1485J; TRN: AH200031%%114
- Journal Information:
- Surface Science Letters, Other Information: Submitted to Surface Science Letters; PBD: 12 Jun 2000
- Country of Publication:
- United States
- Language:
- English
Similar Records
Surface Morphology Changes During Pb Deposition on Cu(100): Evidence for Surface Alloyed Cu(100)-c(2x2) Pb
Self-organized systems for measuring surface stress at the nanoscale: N and O adsorption on Cu(001)