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Geometrical and electronic structure of Pd clusters on graphite
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Abstract
- Pd clusters formed by physical vapor deposition at room temperature (RT) on highly oriented pyrolytic graphite were investigated by a combination of X-ray photoelectron spectroscopy and diffraction, angle-resolved ultraviolet photoelectron spectroscopy, scanning tunneling microscopy and calculations based on the local density functional theory. Different coverages with nominally 3, 5 and 10 A were studied after deposition at RT and after heat treatment at 600°C. Local ordering exhibiting growth with an fcc(1 1 1) orientation is already observed at the lowest coverage, but with no preferred azimuthal orientation in accordance with the substrate itself. However electronic structure features characteristic for a Pd(1 1 1) single crystal appear only after heat treatment.
- Subjects :
- Chemistry
Analytical chemistry
Surfaces and Interfaces
Electronic structure
Condensed Matter Physics
Surfaces, Coatings and Films
law.invention
Crystallography
X-ray photoelectron spectroscopy
Highly oriented pyrolytic graphite
law
Physical vapor deposition
Materials Chemistry
Graphite
Scanning tunneling microscope
Single crystal
Ultraviolet photoelectron spectroscopy
Subjects
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....a4026687fda09e0a46e8bbf80fdcb889