Magnetic properties of the Lu2Fe17−xMnx single crystals

Abstract Magnetic properties of the single-crystalline Lu 2 Fe 17− x Mn x compounds, in which x =0, 0.5, and 2, with the Th 2 Ni 17 -type crystal structure are reported. The Lu 2 Fe 17− x Mn x compounds with x =0 and 0.5 are ferromagnets at low temperatures and antiferromagnets at high temperatures. The compound with x= 2 is always a ferromagnet. The easy-plane magnetic anisotropy in the Lu 2 Fe 17− x Mn x ferromagnets drastically weakens with increase in Mn content up to x =2. The temperature dependence of the first magnetic anisotropy constant was obtained and compared with the single-ion model prediction.