The magnetocaloric properties of GdScSi and GdScGe

Magnetocaloric properties of a novel ferromagnet Gd3Co4+xAl12−x (x = 0.50)

“…The exchanged entropy exhibits a maximum at about 38 K reaching 1.5 and 2.9 J kg À1 K À1 in the 0e1 T and 0e2 T magnetic field ranges, respectively. These performance are far below the giant EMC rareearth based materials such as Gd 5 Si 2 Ge 2 [21] or La(Fe,Si) 13 [22] but compares well with Gd-based compounds recently reported for their magnetocaloric properties such as GdAl 2 [23], GdScX (X ¼ Si, Ge) [24], Gd 7 Pd 3 [25], GdCoNi [26], GdCr 2 Si 2 [27], Gd 3 Co 29 Ge 4 B 10 [28], Gd 6 Mn 23 [29], Gd 3 NiSi 2 [30], GdCo 3 B 2 [31] or GdNi 4 Si [32], the weight magnetic entropy change being slightly larger in our aluminide than all these compounds but the last three ones, despite a much smaller rare earth atomic ratio.…”

Magnetic properties and magnetic structures of the CeScSi-type RMgPb (R=Ce–Nd, Sm, Gd–Tm) compounds

“…Moreover, the Né el temperatures determined for the heavy rare-earth RMgPb compounds are similar with those of the RMgSn compounds, suggesting close R-R magnetic interactions. Indeed, it has been shown that R-R contacts play a crucial role in the magnetic interactions in CeScSi-and closely related CeFeSi-type structure compounds [23][24][25]. Thus, the larger cell parameters of the RMgPb compounds with respect to those of the RMgSn compounds must be compensated by atomic positions adjustment.…”

Hydrogenation studies on NdScSi and NdScGe

“…The Curie temperatures of GdScSi (354 K) and GdScGe (349 K) are even above room temperature and both compounds show a moderate magnetocaloric effect [12].…”