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Surface alloying effects in the growth of Au on Pb(111) thin film
- Source :
- Surface Science. 602:3358-3363
- Publication Year :
- 2008
- Publisher :
- Elsevier BV, 2008.
-
Abstract
- The growth of Au on thin Pb films was studied by scanning tunneling microscopy and low energy electron diffraction. We found that the initial Au deposition resulted in a rough Au-Pb alloy interface on the thin Pb films. With further deposited Au, Moire patterns in a (root 3 x root 3)-Au layer was formed on top of a laterally contracted Au-Pb alloy surface. Finally, the Au deposition performed the Stranski-Krastanov type growth mode to form three-dimensional Au crystals. This structure information provided a possible explanation to the observed phase shift pi between the density of states near the Fermi energy and the superconducting transition temperature as a function of film thickness as reported recently [Guo et al., Science 306 (2004) 1915 and Zhang et al., Phys. Rev. Lett. 95 (2005) 096802]. (c) 2008 Elsevier B.V. All rights reserved.
- Subjects :
- Materials science
Low-energy electron diffraction
Condensed matter physics
Alloy
Fermi energy
Surfaces and Interfaces
engineering.material
Condensed Matter Physics
Surfaces, Coatings and Films
law.invention
Crystallography
law
Materials Chemistry
Density of states
engineering
Thin film
Scanning tunneling microscope
Layer (electronics)
Deposition (law)
Subjects
Details
- ISSN :
- 00396028
- Volume :
- 602
- Database :
- OpenAIRE
- Journal :
- Surface Science
- Accession number :
- edsair.doi...........142f597acffb99d74a24c3c286cfd7c9