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
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.