Journal
SOLID STATE IONICS
Volume 177, Issue 19-25, Pages 1659-1664Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ssi.2006.03.021
Keywords
SrTiO3; (Ba,Sr)TiO3; Cu; Au; photoemission; Schottky barrier; interfaces
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The contact formation of (Ba,Sr)TiO3 thin films and SrTiO3 single crystals with Cu and Au have been studied using X-ray and ultraviolet photoelectron spectroscopy with in situ sample preparation. During metal deposition a partial reduction of the substrate occurs. The Fermi level at the interface is found to be close to the conduction band minimum, indicating small Schottky barrier heights (< 0.2 eV). (c) 2006 Elsevier B.V All rights reserved.
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