HORIZON-2020: Research and Innovation Staff Exchange Action

Memristive and multiferroic materials for logic units in nanoelectronics

MELON

The most simplistic computational model of a neuron is an 'on-off' switch, with a '0' representing a resting state and a '1' representing an axon firing an action potential. While this lends itself well to conventional digital electronics and silicon-based transistors, it does not represent the incredible natural 'state' space of a real neuron. When it comes to realising the potential of a brain-like processing system, novel materials are needed. The EU-funded MELON project has created an expert consortium of academic institutions and an SME to explore novel materials with history-dependent conductivity to emulate neuronal connectivity. Together with materials capable of multivalued logic and interconnects, the team plans to deliver the building blocks of tomorrow's emergent computing circuits...

Develop the innovative material platform...

... to emulate self-organization of neuronal connections, ...

...and overcome the tyranny of the deterministic binary logic...

...to make a machine think like a human

I. Lukyanchuk, presentation at workshop NANOTECH+UPJV

Diego Rubi, “Memristive Devices: towards new bio-inspired electronics

In the search of novel interfaces between insulating oxides with 2D metallic behavior, MELON researchers from Buenos Aires and Groningen have explored the electronic and transport properties of the interface between BaBiO3 (BBO) and yttrium-stabilized zirconia (YSZ). BBO is a charged ordered Peierls-like perovskite well known for its superconducting properties upon K or Pb doping. They demonstrated that a nanometric BBO layer with strong Bi deficiency is stabilized by depositing an YSZ capping layer on top. By combining transport measurements with ab initio calculations it was disclosed a scenario where the Bi vacancies give rise to the formation of polarons and that the electrical transport is dominated by the migration of these polarons trapped at Bi3+ sites. The results show that cation vacancies engineering, hardly explored to date, appears as a promising pathway to tune the electronic and functional properties of perovskites.

Integrating negative capacitance into the field-effect transistors (FET) promises to break fundamental limits of power dissipation known as Boltzmann tyranny in emergent computing circuits. However, the realization of the stable static negative capacitance remains a daunting task. Here we put forth an ingenious design for the ferroelectric domain-based FET with the stable negative capacitance... npj Computational Materials, 8, 52 (2022)

Memristive systems emerge as strong candidates for the implementation of resistive random access memories and neuromorphic computing devices, as they can mimic the electrical analog behavior of biological synapses. MELONs' researchers from Buenos Aires, Bariloche, Groningen, and Zaragoza paved the way for the integration of multi-mem interfaces of oxide-based heterostructures in multiple device architectures. They found that current pulses stimulate an optimum memory response ...

I will study Science!

October 3rd 2020, Dr. Cynthia Quinteros, a member of MELON research project, presented an overview of the scientific life from the perspective of her own personal experiences. The presentation, organized in frame of the program ROOT, was devoted to unveil some myths regarding the archetypical figure of a scientist by the presentation of a real-life example, a woman scientist educated in a foreign in-development country. The talk was conducted in English with simultaneous translation to Dutch, and accompanied by an accordingly designed presentation. The engagement of the kids in the activity was evaluated as positive based on the questions formulated after the talk. The initiative ROOTS consists of a multilingual science programme for kids of 8 -12 years old and supported by the University of Groningen. Its main goal aimed to impact in the university’s neighbouring communities by promoting scientific vocations. See online ...