Novel electroforming-free nanoscaffold memristor with very high uniformity, tunability, and density.

Lee, Shinbuhm; Sangle, Abhijeet; Lu, Ping; Chen, Aiping; Zhang, Wenrui; Lee, Jae Sung; Wang, Haiyan; Jia, Quanxi et al. · Adv Mater · 2014

basic_science · Level V

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Abstract

A novel device structure is developed, which uses easy-to-grow nano scaffold films to localize oxygen vacancies at vertical heterointerfaces. The strategy is to design vertical interfaces using two structurally incompatible oxides, which are likely to generate a high-concentration oxygen vacancy. Non-linear electroresistance at room temperature is demonstrated using these nano scaffold devices. The resistance variations exceed two orders of magnitude with very high uniformity and tunability.