Towards light-controlled electronic components

Read this scientific news on CNRS Physique website

Bibliography

Giant photoconductance at infinite-layer nickelate/SrTiO3 interfaces via an optically induced high-mobility electron gas.
D. Sanchez-Manzano, G. Krieger, A. Raji, B. Geisler, V. Humbert, H. Jaffrès, J. Santamaría, R. Pentcheva, A. Gloter, D. Preziosi et Javier E. Villegas. Nature Materials, le 10 octobre 2025

Contact IPCMS : Daniele Presiozi (Chargé de recherche – DCMI)

A floating gate topology  for agile Artificial Intelligence circuits

As the miniaturization of traditional silicon-based electronics nears its physical limits, the semiconductor industry faces mounting challenges: energy inefficiency, data bottlenecks in von Neumann architectures, and inflexible hardware for AI-driven tasks. Emerging applications like autonomous systems, IoT, and real-time learning demand a radical shift in how computation and memory are integrated at the nanoscale.

Developed by an international consortium of leading institutions including Université de Strasbourg, Institute of Nanotechnoly of Lyon, Université Paris-Saclay, and the National Institute for Materials Science (Japan), we are excited to present a new achievement in nanoelectronics: The Van der Waals Inverted Floating Gate Field-Effect Transistor (IFGFET) — a novel device topology that bridges logic, memory, and neuromorphic computing in a single architecture.

This innovation leverages Van-der-Waals heterostructures, combining ReS₂ semiconductors with a top polymorphic floating gate and a bottom control gate. This topology makes it possible to access the floating gate and leads to a better electrostatic control of the channel compared to the traditional topologies.

In addition, this technology provides game changing features such as:

  • Dual-mode functionality: Operates as a reconfigurable logic gate and a non-volatile memory element.
  • Neuromorphic capabilities: Emulates synaptic behavior with 92% ANN accuracy and supports spiking neuron circuits.
  • Compact and secure design: Enables on-demand, programmable AI circuits with inherent data security through self-erasing memory.
  • Enhanced electrostatic control: Inverted topology boosts performance compared to conventional FGFETs by optimizing gate-to-channel coupling.

This reconfigurable device may unlock new frontiers in in-memory computing, neuromorphic and spiking neural network, and secure AI hardware.

👉 Read the full article in ACS Nano: Link to article

Contact :   dayen@unistra.fr

Nickelates: a stabilised superconducting state without doping

Read the news online on the CNRS CHIMIE website (in french only)

Réference : Hoshang Sahib, Aravind Raji, Francesco Rosa, Giacomo Merzoni, Giacomo Ghiringhelli, Marco Salluzzo, Alexandre Gloter, Nathalie Viart, Daniele Preziosi
Superconductivity in PrNiO2 infinite-layer nickelates
Advanced Materials 2025 
https://doi.org/10.1002/adma.202416187

Contact : Daniele Preziosi (Chercheur à l’Institut de physique et de chimie des matériaux de Strasbourg (CNRS/Université de Strasbourg) daniele.preziosi@ipcms.unistra.fr

Des taxis à protéines

“CORELMAG” fait partie des projets ANR 2019 : Nanocomposites innovants libérant des facteurs biologiques par hyperthermie magnétique en tant que composants de matrices intelligentes pour l’ingénierie tissulaire.

Coordinateur du projet : Damien MERTZ (IPCMS – DCMI)

Vous pouvez lire ou télécharger la BD sur cette page : https://www.alsace.cnrs.fr/fr/corelmag

Initiative portée par le service communication Alsace du CNRS.

Programme d’accompagnement à la médiation scientifique : Sophie Le Ray

Planche de bande-dessinée réalisée par Camille Van Belle

Towards photochemistry on a sub-molecular scale

The article recently published in Nature Nanotechnology (Doi : 10.1038/s41565-024-01622-4): Submolecular-scale control of phototautomerization / Anna Roslawska, Katharina Kaiser, Michelangelo Romeo, Eloïse Devaux, Fabrice Scheurer, Stéphane Berciaud, Tomas Neuman and Guillaume Schull, is the subject of a news item on the CNRS Physique website.

https://www.inp.cnrs.fr/fr/cnrsinfo/vers-une-photochimie-lechelle-sub-moleculaire

Figure : Contrôle local de la réaction de photo-tautomérisation de la phtalocyanine. La pointe métallique est visible dans la partie supérieure gauche de la figure © A. Rosławska et G. Schull.