Core-shell structure in self-assembled lead/lead-oxide nanoclusters revealed by photoelectron spectroscopy
Author
Summary, in English
Nanoclusters containing metallic lead and lead oxide have been produced by self-assembly out of a primary mixture of lead atoms and oxygen in a reactive sputtering-based cluster source. Comparison of the valence and core-level responses in the photoelectron spectra shows that clusters have a core-shell structure with a lead-oxide core coated by an outer shell of metallic lead. This core-shell order is opposite to that typical for most microscopic and macroscopic materials. We explain this by the peculiarities of the cluster production kinetics and by the system's energy minimization striving due to what lead oxide is placed in the core of the mixed cluster. DOI: 10.1103/PhysRevB.87.035402
Department/s
Publishing year
2013
Language
English
Publication/Series
Physical Review B (Condensed Matter and Materials Physics)
Volume
87
Issue
3
Document type
Journal article
Publisher
American Physical Society
Topic
- Natural Sciences
- Physical Sciences
Status
Published
ISBN/ISSN/Other
- ISSN: 1098-0121