Mössbauer studies on effects of Be for magnetic properties of rare-earth intermetallic compounds R 2Fe 17Be

The lattice parameters, magnetization and Curie temperature of R 2Fe 17 decrease with addition of small metal Be, while they increase with the addition of H and N. Mössbauer studies have been performed and the hyperfine fields at four Fe sites 12j(18f), 12k(18h), 6g(9d), 4f(6c) in R 2T 17 structure...

Full description

Saved in:
Bibliographic Details
Published inJournal of magnetism and magnetic materials Vol. 177; pp. 1137 - 1138
Main Authors Ohkubo, Naoki, Itoh, Kazuo, Ban, Syuichi, Kanematsu, Kazuo
Format Journal Article
LanguageEnglish
Published Elsevier B.V 1998
Subjects
Crystal structure
Ferromagnetism
Hyperfine fields
Mössbauer effect
Rare-earth compounds
Mössbauer effect
Rare-earth compounds
Hyperfine fields
Ferromagnetism
Crystal structure
Online AccessGet full text

Cover

More Information
Summary:The lattice parameters, magnetization and Curie temperature of R 2Fe 17 decrease with addition of small metal Be, while they increase with the addition of H and N. Mössbauer studies have been performed and the hyperfine fields at four Fe sites 12j(18f), 12k(18h), 6g(9d), 4f(6c) in R 2T 17 structure were estimated. The hyperfine fields of R 2Fe 17Be are smaller than those of R 2Fe 17. The effect of Be on the hyperfine field at the 12k(18h) site is the largest, then at the 12j(18f) site, then the 6g(9d) site. This fact suggests that the Be atoms place at the 2a(3a) site, because these correspond to distances from 2a site to four Fe sites.
ISSN:0304-8853
DOI:10.1016/S0304-8853(97)00421-6