Measurements are reported on the Auger and characteristic energy loss spectra of evaporated Al both for clean aluminium and as residual oxygen is absorbed on the surface. Fine structure on the high energy side of the main (L 2,3 VV) Auger line is interpreted as a plasmon-gain. This line also exhibits a large (13eV) chemical shift.
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Suleman et al. (1971) studied this question.
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