May 30, 2019
Keio University
RIKEN
A research group including Genki Okano (a second-year student in the Doctoral Programs and a JSPS Research Fellow (DC1)) and Professor Yukio Nozaki from the Graduate School of Science and Technology at Keio University; Associate Professor Mamoru Matsuo and Postdoctoral Researcher Yuichi Ohnuma from the Kavli Institute for Theoretical Sciences, University of Chinese Academy of Sciences; and Senior Research Scientist Sadamichi Maekawa from the RIKEN Center for Emergent Matter Science has discovered evidence that the phenomenon of electric current generating a "spin current" (a flow of magnetism) in surface-oxidized copper originates from current vortices. This new method for generating spin currents, demonstrated in this study, is expected to enable the creation of energy-efficient magnetic devices that do not require magnets or precious metals.
The results of this research were published online in the American Physical Society journal "Physical Review Letters" on May 29 (local time).
Please see below for the full press release.