The electronic structure of free aluminum clusters: Metallicity and plasmons
(2012) In Journal of Chemical Physics 136(20).- Abstract
- The electronic structure of free aluminum clusters with similar to 3-4 nm radius has been investigated using synchrotron radiation-based photoelectron and Auger electron spectroscopy. A beam of free clusters has been produced using a gas-aggregation source. The 2p core level and the valence band have been probed. Photoelectron energy-loss features corresponding to both bulk and surface plasmon excitation following photoionization of the 2p level have been observed, and the excitation energies have been derived. In contrast to some expectations, the loss features have been detected at energies very close to those of the macroscopic solid. The results are discussed from the point of view of metallic properties in nanoparticles with a finite... (More)
- The electronic structure of free aluminum clusters with similar to 3-4 nm radius has been investigated using synchrotron radiation-based photoelectron and Auger electron spectroscopy. A beam of free clusters has been produced using a gas-aggregation source. The 2p core level and the valence band have been probed. Photoelectron energy-loss features corresponding to both bulk and surface plasmon excitation following photoionization of the 2p level have been observed, and the excitation energies have been derived. In contrast to some expectations, the loss features have been detected at energies very close to those of the macroscopic solid. The results are discussed from the point of view of metallic properties in nanoparticles with a finite number of constituent atoms. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4718362] (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2903183
- author
- Andersson, Tomas ; Zhang, Chaofan ; Tchaplyguine, Maxim LU ; Svensson, Svante ; Martensson, Nils and Bjorneholm, Olle
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Chemical Physics
- volume
- 136
- issue
- 20
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- wos:000304818400036
- scopus:84862510015
- pmid:22667568
- ISSN
- 0021-9606
- DOI
- 10.1063/1.4718362
- language
- English
- LU publication?
- yes
- id
- d790ae18-1adb-4957-9848-f323fb289af9 (old id 2903183)
- date added to LUP
- 2016-04-01 10:57:20
- date last changed
- 2022-01-26 04:09:02
@article{d790ae18-1adb-4957-9848-f323fb289af9, abstract = {{The electronic structure of free aluminum clusters with similar to 3-4 nm radius has been investigated using synchrotron radiation-based photoelectron and Auger electron spectroscopy. A beam of free clusters has been produced using a gas-aggregation source. The 2p core level and the valence band have been probed. Photoelectron energy-loss features corresponding to both bulk and surface plasmon excitation following photoionization of the 2p level have been observed, and the excitation energies have been derived. In contrast to some expectations, the loss features have been detected at energies very close to those of the macroscopic solid. The results are discussed from the point of view of metallic properties in nanoparticles with a finite number of constituent atoms. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4718362]}}, author = {{Andersson, Tomas and Zhang, Chaofan and Tchaplyguine, Maxim and Svensson, Svante and Martensson, Nils and Bjorneholm, Olle}}, issn = {{0021-9606}}, language = {{eng}}, number = {{20}}, publisher = {{American Institute of Physics (AIP)}}, series = {{Journal of Chemical Physics}}, title = {{The electronic structure of free aluminum clusters: Metallicity and plasmons}}, url = {{http://dx.doi.org/10.1063/1.4718362}}, doi = {{10.1063/1.4718362}}, volume = {{136}}, year = {{2012}}, }