MAGNETIC-PROPERTIES DISORDERED ISING TERNARY ALLOYS

A theoretical framework for treating a disordered Ising ternary alloy (A(p)B(1-p))(r)C1-r where A and B represent magnetic atoms and C repre sents non-magnetic atoms is discussed within the effective-field theor y with correlations. The magnetic properties of some disordered alloys with spins S-A 1/2 and S-B = 1/2 (or SE 3/2) are investigated within the framework. We find some characteristic phenomena for a ferrimagnet ic alloy with S-B = 3/2, such as an interesting effect of non-magnetic atoms on a compensation point (or points).