Micromagnetic investigation of reversal processes in SmCo/Fe exchange-coupled magnets

The main aim of the present investigation is to develop a technique of 3D computer simulation of SmCo/Fe bilayer exchange-coupled magnets composed of hard and soft magnetic layers. These materials are of great interest now because of the very high values of maximum energy products observed in them; at the same time their computer simulation is rather difficult due to several physical and computational reasons. In present report we review some of these difficulties and propose a technique that may help to go round them.