Magnetic Ordering in the Solid Solution CePt_1–xPd_xAl (x = 0.1–0.8)

Abstract

Abstract. In order to investigate the magnetic properties of the solid solution CePt 1-x Pd x Al the individual compounds were synthesized from the elements using an arc furnace. From x = 0-0.8 the solid solution crystallizes in the orthorhombic TiNiSi-type structure (Pnma, no. 62;(721)(722) and for x = 0.9 both the TiNiSi-as well as the hexagonal ZrNiAl-type structures

Intermetallics of the types REPd3 X 2 and REPt3 X 2 (RE=La–Nd, Sm, Gd, Tb; X=In, Sn) with substructures featuring tin and In atoms in distorted square-planar coordination

“…The high critical field strength of 47(3) kOe, determined at the inflection point, suggests a stable antiferromagnetic ground state. The saturation magnetization at 80 kOe and 3 K reaches only μ sat = 1.0(1) μ B , significantly below the theoretical value of μ sat,theo = 2.14 μ B , frequently observed in intermetallic cerium compounds such as CeAuSn [39] and CePtAl [40,41].…”

Gradual Cerium Valence Change in the Solid Solution CeRu1–xPdxAl (x = 0.1–0.9)

“…The investigations of solid solutions allow an insight into structure‐property relationships regarding the crystal structure of the respective end members as well as the magnetic ground state of the cerium atoms. For CePt 1– x Pd x Al the shift from a ferro‐ to an antiferromagnetic ordering has been shown along with an almost linear change of the respective ordering temperature 7. This is somehow expected since CePdAl orders antiferromagnetically with a Néel temperature of T N = 2.7 K,8,9 whereas CePtAl shows complex ferromagnetic ordering with T C,1 = 5.9 K 10,11.…”

Cerium intermetallics with TiNiSi-type structure

“…Magnetic ordering was studied for the solid solution CePt 1−x Pd x Al for x values ranging from 0.1 to 0.8 [287]. Multi-phased samples were observed for larger x values with contributions of a ZrNiAl-type phase.…”