“…The higher temperature magnetic transition of both these intermetallics (24, 27 K, respectively) is well in trend either with the magnetic ordering temperature of 32 K found in Er 5 Ge 3 [3], as well with the type of magnetic ordering recently determined for this compound [11]. The lower-temperature magnetic ordering of both compounds has no analogs among the already known magnetic structures of the Mn 5 Si 3 -type phases: Tb 5 Si 3 [7], Tb 5 Ge 3 [8], Tb 5 Sb 3 [18], Dy 5 Si 3 [9], Dy 5 Sb 3 [19] and Er 5 Si 3 [10]. It may be moreover mentioned that, even if the nature of the p-block element is less effective in influencing the type of magnetic ordering, both the ordering temperatures of the germanide are relatively higher with respect to those of the silicide.…”