Fujitsu 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.
At the Information Security Expo, Platform of Japan presented Data Killer, a device that can erase data instantly. Data on a hard disk is recorded using magnetic alignments. Data Killer obliterates data instantly, by using a strong magnetic field to change all the magnetic alignments to the same direction.