Presentation Information

4:30 PM - 4:45 PM JST(7:30 AM - 7:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[9p-E215-12]A study of resistive switching phenomenon in graphene/sumanene/graphene structure using AR-HAXPES

〇Ryoichi Kawai¹, Kana Tabata¹, Hyunjun Kim¹, Kaito Kimishima¹, Shion Kaneko¹, Yoshiharu Kirihara¹, Hiroshi Nohira¹, Ryousuke Ishikawa¹, Mitani Yuichiro¹ (1.Tokyo City Univ.)

Keywords:

sumanene,graphene,resistive switching

Sumanene is a hydrocarbon molecule (C₂₁H₁₂) with a bowl-shaped three-dimensional structure composed of carbon and hydrogen. This molecule exhibits a characteristic known as “bowl inversion,” in which its top and bottom are reversed. Simulations based on density functional theory suggest that inserting this molecule between two layers of graphene causes a redistribution of charge due to the inversion of the bowl-shaped structure (bowl inversion). Based on this, we have previously fabricated a layered structure of Al/graphene/sumanene/graphene/n⁺-Si/Al and experimentally confirmed the resistance change phenomenon. However, the cause of this resistance change phenomenon has not yet been clarified. Therefore, in this study, we investigate the high-resistance and low-resistance states in detail using AR-HAXPES measurements and discuss the physical mechanism of the resistance change based on these results.

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