X-ray photoelectron spectra of high Tc bismuth compounds : General trends for layer structures

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Title X-ray photoelectron spectra of high Tc bismuth compounds : General trends for layer structures
Author Bocquet, Antoine; Dobson, John Francis; Healy, Peter Conrad; Myhra, Sverre; Thompson, J. G.
Journal Name Physica Status Solidi B: Basic Research
Year Published 1989
Place of publication Germany
Publisher Wiley V C H
Abstract Analysis by XPS and XAES has been carried out for Bi2Sr2CaCu2O8 and Bi2Sr2CuO6 HTSC compounds. Some preliminary results are also reported for a Tl specimen with predominant Tl2Ba2CaCu2O8 stoichiometry, as well as La0.6Sr0.4CoO3 which is a metallic oxide, but is not superconducting above 4.2 K. Anomalous low binding energy contributions are found for the main alkaline earth envelopes (Ba 3d, Ca 2p, and Sr 3d) for all of these compounds. Likewise, two distinct contributions to the O 1s envelope are observed. The Bi and Tl 4f envelopes and binding energies are consistent with these species being subject to metallic screening. Possible implications of these observations for the electronic structure of the layered HTSC oxides are discussed in the context of a screening as well as a shake-down model.
Peer Reviewed Yes
Published Yes
Publisher URI http://www3.interscience.wiley.com/journal/40001185/home
Alternative URI http://dx.doi.org/10.1002/pssb.2221520214
Copyright Statement Copyright 1989 John Wiley & Sons, Ltd. Self-archiving of the author-manuscript version is not yet supported by this publisher. Please refer to the journal link for access to the definitive, published version or contact the author for more information.
Volume 152
Page from 519
Page to 532
ISSN 0370-1972
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/10072/25038
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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