Fujitsu Paves The Way To Developing Magnetic Materials Which Do Not Rely On Heavy Rare Earth Elements

Fujitsu paves the way to developing magnetic materials which do not rely on heavy rare earth elementsFujitsu today announced the development of a new technology for simulating magnetization reversal and has used the K computer to perform huge calculations to successfully conduct the world’s first simulation of the magnetization-reversal process in a permanent magnet. This opens up new possibilities in the manufacture of electric motors, generators and other devices without relying on heavy rare earth elements.The process of magnetization reversal has been a subject of scientific study, but the huge volume of calculations required to accurately model magnetic materials has made it difficult to simulate that process.


Fujitsu developed a magnetic simulation technology that combines a finite-element method with micromagnetics. This technology makes it possible to compute magnetization processes of magnetic materials with complex microstructures on a nanometer (nm) scale, which is many times smaller than conventional technology can manage, by executing enormous computations on a supercomputer using a massively parallel computing technique. This combination technology paves the way toward R&D advances in new magnetic materials, including strong magnets free from heavy rare earth elements.