5 years ago

Truly Electroforming-Free and Low-Energy Memristors with Preconditioned Conductive Tunneling Paths

Truly Electroforming-Free and Low-Energy Memristors with Preconditioned Conductive Tunneling Paths
Qiangfei Xia, Qing Wu, Xiaochen Ren, J. Joshua Yang, Mark Barnell, Zhongrui Wang, Jung Ho Yoon, Lincoln J. Lauhon, Zhiyong Li, Huaqiang Wu, Jiaming Zhang
1S1R (1 selector and 1 memristor) is a laterally scalable and vertically stackable scheme that can lead to the ultimate memristor density for either memory or neural network applications. In such a scheme, the memristor device needs to be truly electroforming-free and operated at both low currents and low voltages in order to be compatible with a two-terminal selector. In this work, a new type of memristor with a preconditioned tunneling conductive path is developed to achieve the required performance characteristics, including truly electroforming-free, low current below 30 µA (potentially <1 µA), and simultaneously low voltage ≈±0.7 V in switching operations. Such memristors are further integrated with two types of recently developed selectors to demonstrate the feasibility of 1S1R integration. This study proposes and experimentally demonstrates a truly electroforming-free device with both low switching current and voltage for the first time. The exemplary device with a Ta/Ta2O5:Ag/Ru-stack structure functions based on conductive tunneling paths. The low operation current and voltage make the memristors highly compatible with two-terminal selectors. 1S1R integrate cells are demonstrated with both ionic selector and electronic selector.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/adfm.201702010

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.