Doctoral Dissertations

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, Et, were determined and were found to compare well with results expected for double ionization of the L23 level. In the energy range Et < 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, Ep/Et. 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 - Restricted Access

File Type

text

Language

English

Library of Congress Subject Headings

Plasmons (Physics)
Ionization
Auger electron spectroscopy

Thesis Number

T 2990

Print OCLC #

6024546

Electronic OCLC #

913833406

Link to Catalog Record

Electronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.

http://laurel.lso.missouri.edu/record=b1066874~S5

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