Susceptibility of the Rare Earth Ternary RNiSi2 and RNiGe2 Compounds |
A. Gil Institute of Physics, Cracow Technical University, Podchorążych 1, 30-074 Kraków, Poland A. Szytuła, Z. Tomkowicz, K. Wojciechowski Institute of Physics, Jagiellonian University, Reymonta 4, 30-59 Kraków, Poland and A. Zygmunt W. Trzebiatowski Institute of Low Temperatures and Structure Research, Polish Academy of Sciences, Okólna 2, 50-950 Wrocław, Poland |
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The ternary silicides and germanides RNiX2 (R - rare earth, X = Si or Ge) with the orthorhombic CeNiSi2-type structure are investigated by magnetometric measurements. CeNiSi2, CeNiGe2 and SmNiGe2 have a nonmagnetic state in low temperatures. The compounds with R = Pr and Nd are ferromagnets while those containing R = Gd-Er are antiferromagnets. The de Gennes scaling of the Néel temperatures indicates a strong influence of the crystalline-electric field effects. |
DOI: 10.12693/APhysPolA.85.271 PACS numbers: 75.30.Cr |