Orientation-dependent work function of in situ annealed strontium titanate.
J Phys Condens Matter
; 21(31): 314013, 2009 Aug 05.
Article
em En
| MEDLINE
| ID: mdl-21828574
ABSTRACT
We have used energy-filtered x-ray photoelectron emission microscopy (XPEEM) and synchrotron radiation to measure the grain orientation dependence of the work function of a sintered niobium-doped strontium titanate ceramic. A significant spread in work function values is found. Grain orientation and surface reducing/oxidizing conditions are the main factors in determining the work function. Energy-filtered XPEEM looks ideally suited for analysis of other technologically interesting polycrystalline samples.
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01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2009
Tipo de documento:
Article