The magnetic properties of a ferrimagnetic multilayer system with disordered interfaces

The phase diagrams and magnetization curves of a ferrimagnetic multilayer system consisting periodically of L layers of spin-12 A atoms, L layers of spin-1 B atoms, and a disordered interface in between that is characterized by a random arrangement of A and B atoms of ApB1−p type and a negative A–B coupling, are investigated by the use of an effective field method within the framework of a single cluster theory. The consequences of the disordered interfaces and different anisotropies between the bulk and interface for the magnetic properties are examined. A number of characteristic behaviors such as the possibility of a compensation point are found.