SYMPOSIA PAPER Published: 01 January 1978
STP25600S

Quantitative Comparison of the Doubly Integrated Auger Spectra of Magnesium, Aluminum, and Silicon with Their Oxides

Source

Integrals, over selected electron energies, E, of magnesium, aluminum, and silicon KLL Auger spectra of magnesium, aluminum, silicon, and their oxides have been measured directly using tailored modulation techniques. The ratios of Auger currents, I(E), measured in this way from the metals and their respective oxides have been determined and are compared with the corresponding atomic densities of magnesium, aluminum, and silicon in the metals and their oxides. It has been found that, if the I(E) are measured over only the quasi-elastic KL2,3L2,3 Auger peaks, the ratios obtained agree quite well with the atomic densities, whereas, if the I(E) are measured over larger energy ranges, thereby encompassing peaks due to plasmon losses, the agreement is rather poor. This poor agreement is probably due to the quite different inelastic loss mechanisms that occur for the metals and their oxides.

Author Information

Springer, RW
Los Alamos Scientific Laboratory, Los Alamos, N. Mex.
Haas, TW
Air Force Materials Laboratory, Wright-Patterson Air Force Base, Ohio
Grant, JT
Universal Energy Systems, Inc., Dayton, Ohio
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Developed by Committee: E42
Pages: 64–71
DOI: 10.1520/STP25600S
ISBN-EB: 978-0-8031-4715-7
ISBN-13: 978-0-8031-0543-0