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An international consortium (University of Strasbourg, University of Luxembourg, NIMS Japan, Ecole Centrale Lyon, C2N Saclay) led by IPCMS (team of Jean-François Dayen, DMONS), established the concept for a new generation of reconfigurable ferroelectronic logic circuits.
These devices, referred as Re-FeFET, allow for encoding and manipulating the information in a single operating unit, circumventing the famous ”Memory Wall” limitation of modern CMOS technology. By making use of the switchable polarization state of two ferroelectric gates, the electrical potential landscape within a semiconductor channel can be permanently and reconfigurably modified. Depending on the ferroelectric state encoded, the ferroelectric logic circuits can function as six alternative logic gates, while CMOS circuit are limited to a single function. Last but not least, the device can operate as a photodiode and generate photovoltaic energy. These findings rethink circuit topology and memory-logic interaction, opening up new research directions in the area of frugal computational enhancement.
Reference :
Reconfigurable Multifunctional van der Waals Ferroelectric Devices and Logic Circuits
Ankita Ram, Krishna Maity, Cédric Marchand, Aymen Mahmoudi, Aseem Rajan Kshirsagar, Mohamed Soliman, Takashi Taniguchi, Kenji Watanabe, Bernard Doudin, Abdelkarim Ouerghi, Sven Reichardt, Ian O’Connor and Jean-Francois Dayen.
ACS Nano 2023, 10.1021/acsnano.3c07952. Link.
Contact : Jean-Francois Dayen
Références
Reconfigurable Multifunctional van der Waals Ferroelectric Devices and Logic Circuits, Ankita Ram, Krishna Maity, Cédric Marchand, Aymen Mahmoudi, Aseem Rajan Kshirsagar, Mohamed Soliman, Takashi Taniguchi, Kenji Watanabe, Bernard Doudin, Abdelkarim Ouerghi, Sven Reichardt, Ian O’Connor et Jean-Francois Dayen, ACS Nano, publié le 21 octobre 2023.
Doi : 10.1021/acsnano.3c07952
Archives ouvertes : HAL
