Degree Type

Dissertation

Date of Award

1989

Degree Name

Doctor of Philosophy

Department

Physics and Astronomy

First Advisor

Karl A. Gschneidner, Jr.

Abstract

The low temperature heat capacity, magnetic susceptibility and electrical resistivity were studied for a series of Ce intermetallic compounds. No heavy fermion behavior was found in these compounds. CePtGa[subscript]3 has a rounded peak at ~1.7K in its heat capacity, which is shifted to higher temperatures in magnetic fields (~6K at 9.8T). The origin of this peak is believed to be due to a spin glass type transition. CeCd[subscript]11 has an unusual temperature dependence of its heat capacity which is due to a crystalline electric field (CEF) effect which occurs at an exceptionally low temperature. The CEF effect also plays an important role in CeGa[subscript]2. Antiferromagnetic phase transitions were found in CeHg[subscript]3, CeCd[subscript]2, CeCd[subscript]3 and CeNi[subscript]12B[subscript]6. Discussions on the low temperature behaviors of these and other Ce intermetallic compounds are given.

DOI

https://doi.org/10.31274/rtd-180813-12220

Publisher

Digital Repository @ Iowa State University, http://lib.dr.iastate.edu/

Copyright Owner

Jinke Tang

Language

en

Proquest ID

AAI8920192

File Format

application/pdf

File Size

147 pages

Share

COinS