High field magnetization study and analysis of magnetic interactions in Dy2Fe17-xGax (x=5-8) compounds

Citation
N. Sheloudko et al., High field magnetization study and analysis of magnetic interactions in Dy2Fe17-xGax (x=5-8) compounds, J MAGN MAGN, 231(2-3), 2001, pp. 157-161
Citations number
19
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN journal
03048853 → ACNP
Volume
231
Issue
2-3
Year of publication
2001
Pages
157 - 161
Database
ISI
SICI code
0304-8853(200106)231:2-3<157:HFMSAA>2.0.ZU;2-F
Abstract
High field magnetization measurements (up to 38 T) were carried out at 4.2 K on "free powder" samples from Dy2Fe17-xGax (x = 5-8) compounds. The data were used to evaluate the microscopic exchange parameter, J(DyFe). Its valu e was also obtained by mean-field analysis of Curie temperatures, T-c, in a greement with the high-field data. The obtained results reveal an increase of JDyFe above x = 6 that can be correlated with the observed change in T-c vs. x for Dy2Fe17-xGax compounds and their counterparts with Y. (C) 2001 P ublished by Elsevier Science B.V.