PARAMAGNETIC BEHAVIOR OF CE1-XGDXCO2 COMPOUNDS

• Type: Article in International Scientific Journal
• Date: 1995

Authors

Teresa Seixas (Author) FCUP; Machado da Silva, JMM (Author) FCUP; Oliveira, JB (Author) FCUP

Journal

Title: Journal of Magnetism and Magnetic Materials

Vol. 140

Pages: 829-830

ISSN: 0304-8853

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 1 Citation

Other information

Authenticus ID: P-001-HBF

DOI: 10.1016/0304-8853(94)00781-0

Abstract (EN): Magnetic susceptibility studies have been made on the cubic C15 (MgCu2-type) Laves phases Ce1-xGdxCo2 in the temperature range 300-900 K. Well above T-c, the inverse susceptibility follows a linear temperature dependence, as predicted by a phenomenological mean-field model describing a three-component ferrimagnetic alloy with localized magnetic moments. The values of the Curie constant determined in this way decrease regularly with x from x = 1 down to x = 0.4. Around x = 0.3, the Curie constant exhibits a small local maximum. This suggests the onset of a spin-fluctuation regime at low x, possibly due to the reduction of the internal field with the increase of cerium content.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 2