Abstract
Conventional memory elements code information in the Boolean “0” and “1” form. Devices that exceed bistability in their resistance are useful as memory for future data storage due to their enhanced memory capacity, and are also a necessity for contemporary applications such as neuromorphic computing. Here, with the aid of an experimentally validated device model, design rules are outlined and more than two stable resistance states in a graphene ferroelectric field-effect transistor are experimentally demonstrated. The design methodology can be extrapolated for on-demand introduction of multiple resistance states in ferroelectric transistors for applications both in data storage and neuromorphic computing.
Original language | English |
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Article number | 2003085 |
Journal | Advanced Functional Materials |
Volume | 30 |
Issue number | 34 |
DOIs | |
Publication status | Published - 1 Aug 2020 |
Funding
M.H.A. and J.H. contributed equally to this work. The authors would like to acknowledge the financial support from both Alexander von Humboldt Foundation through Sofja Kovalevskaja Award and Max-Planck Institute for Polymer Research; Prof. Paul W. M. Blom for fruitful discussion; and the technical assistance of M. Beuchel, F. Keller and C. Bauer.
Keywords
- field-effect transistors
- graphene
- multi-bit memory
- neuromorphic computing
ASJC Scopus subject areas
- General Chemistry
- General Materials Science
- Condensed Matter Physics