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Efficient Stable Multilevel Ferroelectric Tunnel Junctions Enabled by Layered 2D van der Waals Heterostructures

Project description

Memory for neuromorphic computing

Modern computing faces the challenge of creating memory devices that are not only highly efficient but also capable of mimicking the brain’s neuromorphic capabilities. Conventional technologies struggle with energy inefficiency, limited data retention, and scalability issues. Addressing these limitations is crucial for advancing fields like artificial intelligence and data processing. Supported by the Marie Skłodowska-Curie Actions programme, the ESTRELLA project will leverage the unique properties of 2D ferroelectric material CuInP₂S₆ (CIPS). By integrating CIPS into ferroelectric tunnel junctions (FTJs), ESTRELLA aims to create energy-efficient, highly stable, multilevel memory devices with neuromorphic potential. The project combines cutting-edge materials science, physics, and electrical engineering to design memory systems that are innovative and practical for future computing needs.

Objective

Through ESTRELLA I aim to develop energy efficient (i.e. field-driven), stable (retention time > 10 years), multilevel (16 state/4-bit) two-terminal devices based on 2D ferroelectric CuInP2S6 (CIPS). The project will provide a comprehensive investigation of CIPS material properties both as an exfoliated film and when integrated in ferroelectric tunnel junction (FTJ) devices through multilayer vdW epitaxy. The final devices aim to exploit the atomically sharp interfaces of vdW heterostructures, small domain wall energy and slow but stable switching of CIPS in order to produce a ferroelectric memory suitable for neuromorphic applications. Furthermore, I will investigate the impact of different electrodes on tunnelling electroresistance (TER) and switching voltages in order to design an optimal CIPS-based FTJ. This draws together my experience in the fields of ferroelectric devices and materials characterisation with that of the supervisor (Prof. Luis Hueso, CIC nanoGUNE), who is an expert on 2D materials and van der Waals (vdW) heterointegration. ESTRELLA will target areas of materials science - heterointegration techniques, 2D film characterisation; physics - understanding of domain dynamics and 2D material interfacial interactions; and electrical engineering - targeting FTJ devices as building blocks for neuromorphic computing. Parallel to my scientific work, with ESTRELLA I will develop skills as an independent researcher through publication and dissemination of my work, supervision, collaboration and project organisation.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2023-PF-01

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Coordinator

ASOCIACION CENTRO DE INVESTIGACION COOPERATIVA EN NANOCIENCIAS CIC NANOGUNE
Net EU contribution
€ 165 312,96
Address
TOLOSA HIRIBIDEA 76
20018 San Sebastian
Spain
Region
Noreste País Vasco Gipuzkoa
Activity type
Research Organisations
Links
Total cost
No data