Abstract
The atomic structure and morphology of ultrathin Pb layers deposited on the Ni(111) face in ultrahigh vacuum at the substrate temperature ranging from 150 to 910 K were investigated with the use of Auger electron spectroscopy (AES), low-energy electron diffraction, and directional elastic peak electron spectroscopy (DEPES). The analysis of AES measurements indicates that the two-dimensional growth of the first Pb monolayer takes place for the substrate temperature For flat two- and three-atomic layer islands (“wedding cakes”) seem to grow after the completion of the first lead monolayer. Then, the three-dimensional growth starts. DEPES measurements indicate that for layers deposited at a twin interface is formed between the Ni substrate and the Pb layer.
- Received 4 January 2002
DOI:https://doi.org/10.1103/PhysRevB.66.035410
©2002 American Physical Society