Abstract
Structural and magnetic properties of (Nd1-xErx)3Fe273Ti17 compounds have been investigated by means of x-ray diffraction and magnetic measurements. All the compounds with x in the range of 00—05 crystallize in a Nd3(Fe,Ti)29-type structure. Substitution of Er for Nd leads to a contraction of unit-cell volume. Curie temperature TC of the (Nd1-xErx)3Fe273Ti17 compounds decreases monotonically with increasing Er content. Saturation magnetization Ms of the (Nd1-xErx)3Fe273Ti17 compounds decreases with increasing x. As temperature decreases from room temperature to 5K, a spin reorientation from easy plane to easy cone occurs for (Nd1-xErx)3Fe273Ti17 compounds. The anisotropy field Ba for(Nd1-xErx)3Fe273Ti17 compounds decreases with increasing Er content. Spin-phase diagrams have been constructed for (Nd1-xErx)3Fe273Ti17 compounds.
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