A joint research group led by Associate Professor Shinobu Ohya and Professor Masaaki Tanaka has achieved the world’s highest efficiency of spin-to-charge current conversion, more than three times higher than conventional methods, using a strongly correlated electron oxide in the metallic state to solve the problem of spin current attenuation in insulators when spin current is injected into a two-dimensional electron gas. This is a key technology that is expected to lead to the realization of low-power spin devices using oxides in the future. The joint research group consists of the University of Tokyo group led by Associate Professor Ohya and Professor Tanaka, with the addition of Associate Professor Koji Horiba of the High Energy Accelerator Research Organization (KEK, at the time of research) and Professor Hiroshi Kumigashira of Tohoku University. The resulting paper was published in the scientific journal “Nature Communications” on September 26.
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