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The initial oxidation of magnesium at oxygen partial pressures between 1.3×10 −8 Pa and 1.3×10 −5 Pa and at temperatures just above room temperature has been investigated in situ with X-ray photoelectron spectroscopy (XPS) and ellipsometry. Quantitative analysis of the XPS spectra showed that the initially formed oxide has a higher Mg/O ratio (>1.3) than bulk MgO. Ellipsometry measurements...
Separation of intrinsic and extrinsic intensity contributions to plasmon peaks in X-ray photoelectron spectra of free-electron like metals (Me) such as Be, Na, Mg, Al and semiconductors as Si and Ge, necessary for the accurate determination of the thickness of overlayers in the range of a few nanometers, and their composition, is difficult because of their more or less coincident energies. The intrinsic...
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