Masters Theses

Abstract

"The Weiss molecular field theory has been applied to the lattice of the B-site spinel. The forms of the ordering temperatures and the asymptotic Curie temperature have been determined for a sixteen-sublattice model with collinear spins. The theory has been applied to the problem of determining the exchange integrals for systems of the form Aa₁₋ₓAbₓCr₂X₄ and ACr₂Xa4(1-y)Xb4y. The theoretical results have been compared to the experimental data for the systems Hg₁₋ₓCdₓCr₂S₄, Zn₁₋ₓCdₓCr₂Se₄, and CdCr₂S4(1-y)Se4y in an attempt to determine the exchange integrals"--Abstract, page ii.

Advisor(s)

Brown, Harry A., 1925-1995

Committee Member(s)

Gerson, Robert, 1923-2013
James, William Joseph

Department(s)

Physics

Degree Name

M.S. in Physics

Publisher

University of Missouri--Rolla

Publication Date

1970

Pagination

vi, 41 pages

Note about bibliography

Includes bibliographical references (pages 69-70).

Rights

© 1970 Wayne Edmund Holland, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Subject Headings

Mean field theory
Ferromagnetic materials
Curie temperature
Spinel

Thesis Number

T 2436

Print OCLC #

6024868

Electronic OCLC #

862110020

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