Orientation-dependent work function of in situ annealed strontium titanate.
نویسندگان
چکیده
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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عنوان ژورنال:
- Journal of physics. Condensed matter : an Institute of Physics journal
دوره 21 31 شماره
صفحات -
تاریخ انتشار 2009