Magnetic and Thermoelectric Properties of Cobalt Ferrite

Author

Nlebedim, Ikenna Cajetan ; Levin, E.M. ; Prozorov, R. ; Dennis, K.W. ; McCallum, R.W. ; Jiles, David C.

Author_Institution

U.S. Dept. of Energy, Ames Lab., Ames, IA, USA

Volume

49

Issue

7

fYear

2013

fDate

Jul-13

Firstpage

4269

Lastpage

4272

Abstract

Vacuum sintering has been found to result in large decrease in the electrical resistivity of cobalt ferrite samples which led to the enhancement of the thermoelectric properties compared to samples prepared by other methods. Magnetization of the sample was found to be affected by a (Co_1-xFe_x)O phase developed due to the reducing nature of the vacuum chamber in which the samples were sintered. The Curie temperature obtained for the samples is similar.

Keywords

Curie temperature; cobalt compounds; electrical resistivity; ferrites; magnetisation; sintering; thermoelectricity; (Co_1-xFe_x)O; Curie temperature; cobalt ferrite; electrical resistivity; magnetic properties; magnetization; thermoelectric properties; vacuum chamber; vacuum sintering; Cobalt; Conductivity; Ferrites; Magnetization; Magnetostriction; Temperature; Temperature measurement; Cobalt ferrite; Curie temperature; Seebeck coefficient; electrical resistivity; magnetization; power factor; thermopower; vacuum sintering;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2013.2245112

Filename

6559299