Ternary system Er–Ni–In at T=870 K

Isothermal section of the Er–Ni–In system at T=870 K was constructed by means of X-ray powder diffraction and EDX-analyses. Nine ternary compounds, namely ErNi9In2 (YNi9In2-type), Er1−1.22Ni4In1−0.78 (MgCu4Sn-type), Er10Ni9.07In20 (Ho10Ni9In20-type), ErNi1−0.60In1−1.40 (ZrNiAl-type), Er2Ni2In (Mn2AlB2-type), Er2Ni1.78In (Mo2FeB2-type), Er5Ni2In4 (Lu5Ni2In4-type), Er5Ni2In (Mo5SiB2-type), and Er13.53Ni3.14In3.33 (Lu14Co2In3-type), exist in the Er–Ni–In system at this temperature. The substitution of Ni for In was observed for ErNi1−0.60In1−1.40 and In for Er in the case of related compounds ErNi2 and ErNi4In. Er can enter NiIn (CoSn-type) leading to including-substitution type of compound Er0−0.12NiIn1−0.89. Basic magnetic properties of the Er0.04NiIn0.97, ErNi2, Er0.9Ni2In0.1, and ErNi4In phases were inspected. Electrical-resistivity studies were performed on the ErNiIn, ErNi0.9In1.1, and ErNi4In phases.