Alan Kersey

Publication Date

1999

Document Type

Dissertation/Thesis

First Advisor

Shaffer, John C., 1938-2017

Degree Name

M.S. (Master of Science)

Legacy Department

Department of Physics

LCSH

Manganese; Electron configuration; Manganese compounds; Lanthanum compounds; Crystal field theory

Abstract

This thesis is a theoretical study of the electronic configurations of manganese in LaMnO3 . The crystal field splitting energies of the Mn ions are calculated from Roothaan-Hartree-Fock wavefunctions. A simplified approximation to the Roothaan- Hartree-Fock wavefunctions is developed. The spin-orbit splitting energies are calculated from those approximations. The splitting energies are used along with Tanabe-Sagano diagrams to identify the relative importance of the electronic interactions with neighboring ions as compared to the interactions between Mn electrons. This comparison is then utilized to identify the ground-state electronic configuration of the Mn ions in LaMnO3 .

Comments

Includes bibliographical references (pages [42]-43).

Extent

v, 174 pages

Language

eng

Publisher

Northern Illinois University

Rights Statement

In Copyright

Rights Statement 2

NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.

Media Type

Text

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