Auger satellites of the L₂₃ auger emission bands of Al, Si, and P

Author

John Junior Melles

Abstract

"In this study a detailed investigation of the high energy satellites of the L₂₃ Auger emission bands of Al, Si, and P was made. The satellites are interpreted as arising from double ionization of the L₂₃ shell rather than from a plasmon gain process. The parent-satellite energy separations, ΔE, between like structures were determined and were found to be consistently smaller than the volume plasmon energies measured for the same samples. A comparison of Si and SiO revealed no evidence that ΔE for Si is dependent on the volume plasmon energy of the sample.

The satellite threshold excitation energies, E_t, were determined and were found to compare well with results expected for double ionization of the L₂₃ level. In the energy range E_t < p- < 2KeV, the ratio of the satellite to parent Auger intensities for all three samples were in good agreement when plotted vs. the reduced energy scale, E_p/E_t. The results were also found to be consistent with Gryzinski's binary-encounter model.

The previously reported plasmon like loss structure associated with the L₂₃ ionization loss peak for Si was found not to be related to the high energy L₂₃ Auger satellite. Also, an ionization loss peak for Si observed at a loss energy of 216 eV is tentatively identified as corresponding to double ionization of the L₂₃ shell"--Abstract, page ii.

Advisor(s)

Levenson, L. L., 1928-1998

Committee Member(s)

Tefft, Wayne E., 1929-1973
Ownby, P. D.
Alexander, Ralph William, Jr.
Plummer, O. R.

Department(s)

Physics

Degree Name

Ph. D. in Physics

Sponsor(s)

University of Missouri--Rolla. Materials Research Center
United States. Air Force
National Science Foundation (U.S.)

Publisher

University of Missouri--Rolla

Publication Date

1973

Pagination

vii, 73 pages

Note about bibliography

Includes bibliographical references.

Rights

© 1973 John Junior Melles, All rights reserved.

Document Type

Dissertation - Open Access

File Type

text

Language

English

Subject Headings

Plasmons (Physics)IonizationAuger electron spectroscopy

Thesis Number

T 2990

Print OCLC #

6024546

Electronic OCLC #

913833406

Recommended Citation

Melles, John Junior, "Auger satellites of the L₂₃ auger emission bands of Al, Si, and P" (1973). Doctoral Dissertations. 251.
https://scholarsmine.mst.edu/doctoral_dissertations/251