A research group led by Associate Professor Satoshi Nakatsuji of the University of Tokyo has succeeded in changing from an insulator to a metal by applying a weak magnetic field to a magnetic material made of niobium and iridium.New storage devices and magnetic sensors may be realized using this technology.
This proved that the combination of rare earths and transition metals makes it possible to change from an insulator to a metal by a magnetic field, which was previously thought to be impossible.Compared to the conventional method of heating to a high temperature, the magnetic field can be turned on and off at a very high speed and with less energy.It is expected that this can be used to create a memory that records "0" and "1" of digital information and a magnetic sensor that sends an electric signal by detecting a magnetic field.
In addition to the possibilities of industrial application, the impact of realizing what was previously thought to be impossible is enormous.The nature of solids is an area where a great deal of research is concentrated, both domestically and internationally.Research on phenomena that could not be realized with already known compounds will continue to progress.