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Core-shell structure in self-assembled lead/lead-oxide nanoclusters revealed by photoelectron spectroscopy

Zhang, Chaofan; Andersson, Tomas; Svensson, Svante; Bjorneholm, Olle and Tchaplyguine, Maxim LU (2013) In Physical Review B (Condensed Matter and Materials Physics) 87(3).
Abstract
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
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review B (Condensed Matter and Materials Physics)
volume
87
issue
3
publisher
American Physical Society
external identifiers
  • wos:000312999300005
  • scopus:84872232049
ISSN
1098-0121
DOI
10.1103/PhysRevB.87.035402
language
English
LU publication?
yes
id
845f2bc1-6e1b-4c4a-a482-c982a539e650 (old id 3479976)
date added to LUP
2013-02-26 08:19:32
date last changed
2019-04-23 02:37:17
@article{845f2bc1-6e1b-4c4a-a482-c982a539e650,
  abstract     = {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},
  articleno    = {035402},
  author       = {Zhang, Chaofan and Andersson, Tomas and Svensson, Svante and Bjorneholm, Olle and Tchaplyguine, Maxim},
  issn         = {1098-0121},
  language     = {eng},
  number       = {3},
  publisher    = {American Physical Society},
  series       = {Physical Review B (Condensed Matter and Materials Physics)},
  title        = {Core-shell structure in self-assembled lead/lead-oxide nanoclusters revealed by photoelectron spectroscopy},
  url          = {http://dx.doi.org/10.1103/PhysRevB.87.035402},
  volume       = {87},
  year         = {2013},
}