Studies on the Magnetic Intensity of π Phase Mn-Al Alloys

Abstract

The magnetic intensity of the π phase Mn-Al alloys of various compositions, with or without additional elements such as Ti, Cr, Fe, Co, Ni and Cu, has been measured. The decrease in Mn content and the addition of Ti element have been found to increase the magnetic intensity.
The results of Mn-Al binary alloys can be explained in terms of the magnetic structure suggested by P. B. Braun, while those of the alloys with the additional elements can be explained by the magnetic structure with a modification (i.e. the alloy elements at the lattice positions which are estimated from the atomic volume as well as the electronegativity) and the empirical rule for magnetic moments of ferromagnetic binary alloys.