Abstract
The effect of Al on the structural and magnetic properties of Pr-3(Fe1-xAlx)(27.5)Ti-1.5 (x=0.1, 0.2, and 0.3) compounds has been investigated by x-ray-diffraction, magnetization, and Curie temperature measurements. All these compounds have formed in monoclinic symmetry with A2/m space group with Pr(Fe,Ti)(12) as secondary phase and traces of alpha-Fe. The monotonic decreases in M-S both at 300 and 80 K are discussed on the basis of electron transfer from the 3p band of Al to the 3d band of Fe near E-F. The variations in T-C are explained using the Friedel approach. In all the compounds, the easy magnetization direction is away from the b axis. (C) 2006 American Institute of Physics.