Abstract
The growth of thin Pb layers ( less than 12 monolayers) was studied in ultrahigh vacuum by high energy ion scattering/channeling, low energy electron diffraction (LEED), and Auger electron spectroscopy (AES). Deposition and analysis were performed at 300 K and 140 K. The Pb coverage was determined quantitatively by ion scattering. The results indicated a clear transition in the growth mode as a function of temperature. At 300 K, two-dimensional island growth was observed up to 1. 0 monolayer, followed by three-dimensional epitaxial growth of strained islands. Two-dimensional island growth was observed up to 5 monolayers at 140 K. The relative positions of the overlayer atoms relative to the substrate was studied to understand two-dimensional phase transitions above room temperature.
Original language | English |
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Title of host publication | Materials Research Society Symposia Proceedings |
Publisher | Materials Research Soc |
Pages | 187-191 |
Number of pages | 5 |
Volume | 41 |
ISBN (Print) | 0931837065 |
Publication status | Published - 1985 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials