X-ray photoelectron spectra of perovskite-type cobalt oxides La1-xSrxCoO3-y (x = 0.4, 0.6)

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Title X-ray photoelectron spectra of perovskite-type cobalt oxides La1-xSrxCoO3-y (x = 0.4, 0.6)
Author Bocquet, Antoine; Chalker, P.; Dobson, John Francis; Healy, Peter Conrad; Myhra, Sverre; Thompson, J.G.
Journal Name Physica C: Superconductivity and its Applications
Year Published 1989
Place of publication Netherlands
Publisher Elsevier BV
Abstract X-ray photoelectron spectra have been collected for bulk samples of the ternary perovskite-type cobalt oxides La1−xSrxCoO3−y (x=0.4, 0.6). Anomalously low binding energy components for the O 1s and Sr 3d photopeaks, similar to those recorded for the family of high temperature superconducting copper oxides, have been observed. These observations have been interpreted in terms of an initial-state screening mechanism and the implications for the electronic structure of “metallic” oxides are discussed. The Co 2p signature is typical of low spin Co3+, suggesting that doping by strontium leads to the formation of holes in the oxygen bands.
Peer Reviewed Yes
Published Yes
Publisher URI http://www.sciencedirect.com/science/journal/09214534
Alternative URI http://dx.doi.org/10.1016/0921-4534(89)90058-0
Copyright Statement Copyright 1989 Elsevier. Please refer to the journal's website for access to the definitive, published version.
Volume 160
Page from 252
Page to 258
ISSN 0921-4534
Date Accessioned 2007-11-25
Language en_AU
Research Centre Queensland Micro and Nanotechnology Centre
Faculty Faculty of Science
Subject PRE2009-Condensed Matter Physics-Electronic and Magnetic Properties; Superconduc
URI http://hdl.handle.net/10072/24990
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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