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Auger lines relative intensities as a tool for the characterizing of oxides formed during the oxidation of single crystals of dilute Cu‐Mn alloys
Author(s) -
Van Steene G.,
JardinierOffergeld M.,
Bouillon F.
Publication year - 1986
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.740090309
Subject(s) - chemistry , auger , humanities , analytical chemistry (journal) , physics , atomic physics , art , organic chemistry
During the oxidation process of dilute Cu-Mn alloys, different oxides (MnO, Mn//3O//4, Mn//2O//3, MnO//2, Cu//2O, CuO) may appear. Determination of the nature of these oxides is possible by examination of both oxygen and metallic elements spectra. For Mn and its oxides, we used for a better accuracy the amplitude ratio of the Mn//L//3 //M//2//,//3 M//4//,//5 (with only one valence level) and Mn//L//3 //M//2//,//3 transitions. For oxygen, the KL1 L1 Auger line also has very poor Auger yield and we preferred to measure the HO//K//L//2//,//3 //L//2//,//3 ratio for the different oxides. A statistical treatment of experimental data collected on standard oxides of well known stoichiometry (Cu//2O, CuO, MnO and Mn//3O//4) has given a set of values for the Auger amplitude ratios suitable for determining the compounds formed on the surface during oxidation of dilute 3-10 at% Cu-Mn alloys. The growth mode of these different oxides is also tentatively presented for the following oxidation conditions: p equals 10** minus **4 Torr O//2, T equals 700 degree C.SCOPUS: ar.jFLWNAinfo:eu-repo/semantics/publishe