May 12, 2025
Keio University
Japan Science and Technology Agency (JST)
A research group, including Assistant Professor Taisuke Iguchi of Fukuoka University (at the time of the research, a Project Assistant Professor at the Faculty of Science and Technology, Keio University), Professor Yukio Nozaki of the Faculty of Science and Technology, Keio University, Group Leader Hiroaki Sukegawa of the National Institute for Materials Science (NIMS), and Associate Professor Mamoru Matsuo of the Kavli Institute for Theoretical Sciences, University of Chinese Academy of Sciences, has discovered that a "nano-graded material," created by combining common materials like silicon and aluminum at the nanometer level, generates magnetic torque with an efficiency exceeding that of the rare metal platinum. This achievement is based on a completely new principle that utilizes the rotational motion generated in the flow of electrons, and it contributes to the development of environmentally friendly, sustainable technology that enables lower power consumption and higher performance in next-generation memory and electronic devices without relying on rare metals. These findings were published in the American scientific journal Science Advances on May 9, 2025 (US Eastern Time).
Please see below for the full press release.