Yuragi Electronics inspired by bio-system

2017 Fiscal Year Final Research Report

• Project/Area Number: 24226014
• Research Category: Grant-in-Aid for Scientific Research (S)
• Allocation Type: Single-year Grants
• Research Field: Inorganic materials/Physical properties
• Research Institution: The University of Tokyo
• Principal Investigator: Tabata Hitoshi 東京大学, 大学院工学系研究科(工学部), 教授 (00263319)
• Co-Investigator(Kenkyū-buntansha): 関 宗俊 東京大学, 大学院工学系研究科(工学部), 准教授 (40432439) ; 松井 裕章 東京大学, 大学院工学系研究科(工学部), 准教授 (80397752)
• Co-Investigator(Renkei-kenkyūsha): HOTTA Yasushi 兵庫県立大学, 工学研究科, 准教授 (30418652) ; YOKOTA Hiroko 千葉大学, 理学研究科, 助教 (50608742) ; YAMAHARA Hiroyasu 東京大学, 大学院工学系研究科, 助教 (30725271)
• Project Period (FY): 2012-05-31 – 2017-03-31
• Keywords: ゆらぎ / スピングラス / 散逸 / ニューロモルフィック / ブレインモルフィック

Outline of Final Research Achievements

The garnet type iron oxide thin films showing spin glass physical properties have been synthesized for the first time by controlling randomness and frustration at atomic scale. In photo-induced spin states, which corresponds to write/erase properties, can be demonstrated using these materials. Enhancement of short-term memory and synaptic behaviors such as adaptive learning are confirmed. Furthermore, we have designed and fabricated semiconducting chips incorporating the biological fluctuation function (stochastic resonance) and successfully verified the signal enhancement effect due to noise.

Free Research Field

理工学