Magnetic properties of the intermetallic compounds Gd(Mn 1-xNi x) 2

The magnetic properties of pseudobinary compounds Gd(Mn _{1- x}Ni _x) ₂ were studied to understand the type of magnetic interaction among the constituent atoms of the parent binary compound. The Arrott plot for GdMn ₂ indicates no spontaneous magnetization. The magnetization and the Curie temperature increase with increasing concentration of Ni on the Mn rich side. The collapse of the Mn moment makes the Gd moment dominant in magnetization with increasing Ni concentration.