Dr. Shingo Kaneta (Takada) in the Department of Electrical Engineering and Information Systems received the 37th Advanced Technology Award and the Minister of Education, Culture, Sports, Science and Technology Award.
Name of award and short explanation about the award
37th Advanced Technology Award and the Minister of Education, Culture, Sports, Science and Technology Award
Sponsored by the Sankei Shimbun and supported by the Ministry of Education, Culture, Sports, Science and Technology, Ministry of Economy, Trade and Industry, Fuji Television Network, Nippon Broadcasting System, with special cooperation from Akariku, this award is given to students and young researchers in the science and engineering fields and companies who have achieved outstanding research results.
About awarded research(activity)
Title: Highly efficient spin-to-charge-current conversion using oxide-based single-crystalline heterointerfaces
In today's information society, the rapid increase in the amount of information increases the power consumption of information processing devices and memory, which has become a major issue. To solve this problem, spintronics technology, which uses the spin degrees of freedom of electrons (the property of electrons as magnets), is being actively studied. Spintronics devices use the direction of magnetization (NS direction) to record data “0” and “1”. This method can retain data even when the power is off and is expected to reduce power consumption. Particular attention is being paid to devices that utilize “interconversion between a spin current and a charge current.” The higher the efficiency of this conversion is, the lower the power consumption of devices becomes. In our study, we have achieved the highest efficiency of spin-to-charge current conversion among those reported for various material systems using a two-dimensional electron gas formed at the perovskite oxide LaTiO3/SrTiO3 interface. We carried out theoretical calculations, providing material design guidelines for obtaining high spin-to-charge-current conversion efficiencies. Furthermore, we have explored ferromagnetic materials and novel physical phenomena for the realization of ultra-low power consumption memory and have shown a new guideline for device realization.
Your impression & future plan
I am very honored to receive this award. I would like to express my sincere gratitude for the constant support and cooperation of my supervisor, Professor Shinobu Ohya, my co-researcher, Professor Masaaki Tanaka, and my collaborators. Although my research activities under the unprecedentedly difficult circumstances of COVID-19 have been beset with many restrictions and challenges, it was the support of so many people that made it possible for me to achieve such excellent results. Their encouragement and cooperation have been the driving force behind my research and have been a great source of strength. Encouraged by this award, I will continue to pursue my research and strive to return the results to society. I hope that our research will help pave the way to the future, and I will devote myself to further technological innovation.
