Photon energy dependence of final state screening in a dilute electron gas system: A synchrotron radiation photoemission study of beta-PbO2
Photoemission spectra of thick films of β-PbO2 have been measured over a range of exciting photon energies between 40 eV and 150 eV. There is evidence for occupation of conduction band states above the top of the main valence band to give a degenerate electron gas and the spectra terminate in a shar...
Main Authors: | , , , , |
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Format: | Journal article |
Language: | English |
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2007
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author | Payne, D Hu, J Egdell, R Dhanak, V Miller, G |
author_facet | Payne, D Hu, J Egdell, R Dhanak, V Miller, G |
author_sort | Payne, D |
collection | OXFORD |
description | Photoemission spectra of thick films of β-PbO2 have been measured over a range of exciting photon energies between 40 eV and 150 eV. There is evidence for occupation of conduction band states above the top of the main valence band to give a degenerate electron gas and the spectra terminate in a sharp metallic Fermi edge. Structure associated with screening of shallow 5d core holes by the mobile conduction electrons observed in Al Kα excited X-ray photoemission spectra is suppressed in the lower energy spectra and the Pb 5d core level appears as a simple spin-orbit doublet. © 2007 Elsevier B.V. All rights reserved. |
first_indexed | 2024-03-07T04:14:21Z |
format | Journal article |
id | oxford-uuid:c8e9eebf-528f-46f2-a793-3fbac127cc27 |
institution | University of Oxford |
language | English |
last_indexed | 2024-03-07T04:14:21Z |
publishDate | 2007 |
record_format | dspace |
spelling | oxford-uuid:c8e9eebf-528f-46f2-a793-3fbac127cc272022-03-27T06:55:19ZPhoton energy dependence of final state screening in a dilute electron gas system: A synchrotron radiation photoemission study of beta-PbO2Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:c8e9eebf-528f-46f2-a793-3fbac127cc27EnglishSymplectic Elements at Oxford2007Payne, DHu, JEgdell, RDhanak, VMiller, GPhotoemission spectra of thick films of β-PbO2 have been measured over a range of exciting photon energies between 40 eV and 150 eV. There is evidence for occupation of conduction band states above the top of the main valence band to give a degenerate electron gas and the spectra terminate in a sharp metallic Fermi edge. Structure associated with screening of shallow 5d core holes by the mobile conduction electrons observed in Al Kα excited X-ray photoemission spectra is suppressed in the lower energy spectra and the Pb 5d core level appears as a simple spin-orbit doublet. © 2007 Elsevier B.V. All rights reserved. |
spellingShingle | Payne, D Hu, J Egdell, R Dhanak, V Miller, G Photon energy dependence of final state screening in a dilute electron gas system: A synchrotron radiation photoemission study of beta-PbO2 |
title | Photon energy dependence of final state screening in a dilute electron gas system: A synchrotron radiation photoemission study of beta-PbO2 |
title_full | Photon energy dependence of final state screening in a dilute electron gas system: A synchrotron radiation photoemission study of beta-PbO2 |
title_fullStr | Photon energy dependence of final state screening in a dilute electron gas system: A synchrotron radiation photoemission study of beta-PbO2 |
title_full_unstemmed | Photon energy dependence of final state screening in a dilute electron gas system: A synchrotron radiation photoemission study of beta-PbO2 |
title_short | Photon energy dependence of final state screening in a dilute electron gas system: A synchrotron radiation photoemission study of beta-PbO2 |
title_sort | photon energy dependence of final state screening in a dilute electron gas system a synchrotron radiation photoemission study of beta pbo2 |
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