X-ray photoelectron studies of high-temperature superconductors: evidence for the importance of alkaline earth metals

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Title X-ray photoelectron studies of high-temperature superconductors: evidence for the importance of alkaline earth metals
Author Dobson, John Francis; Bocquet, Antoine; Healy, Peter Conrad; Myhra, Sverre; Stewart, A. M.; Thompson, J. G.
Journal Name Australian Journal of Physics
Year Published 1989
Place of publication Australia
Publisher CSIRO Publishing
Abstract All high-temperature superconducting ceramics so far studied contain alkaline-earth ions, and in all cases core-level X-ray photoelectron spectroscopy shows an anomalous low-binding energy peak from these ions. We argue that this may point to electron-rick alkaline earth layers. These should be highly polarisable, allowing them to facilitate superconductivity by screening the repulsion between electrons and/or holes in the CuO layers.
Peer Reviewed Yes
Published Yes
Publisher URI http://www.publish.csiro.au/nid/78.htm?nid=79&aid=69
Copyright Statement Copyright 1989 CSIRO. Please refer to the journal's website for access to the definitive, published version or contact the author.
Volume 42
Page from 409
Page to 412
ISSN 0004-9506
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/10072/25021
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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