Publications de Felix Risch | EPFL Graph Search

Position-Sensitive Domain-by-Domain Switchable Ferroelectric Memristor

Domain-wall electronics based on the tunable transport in reconfigurable ferroic domain interfaces offer a promising platform for in-memory computing approaches and reprogrammable neuromorphic circuits. While conductive domain walls have been discovered in ...

2025

Atomic-Scale Characterization of 180° Conductive Domain Walls in PbZr0.1Ti0.9O3

Igor Stolichnov, Felix Risch

Conductive domain walls (DWs) in ferroic materials have emerged as promising candidates for applications in nanoelectronics due to their unique properties such as high conductivity and nonvolatility. In this study, we investigate the atomic structure and c ...

2024

Conductive ferroelectric domain walls in Pb(Zr,Ti)O3 for neuromorphic applications

Felix Risch

Over the last decades, the digital revolution has continuously increased the demand for more computational power. However, with the exponential rise of artificial intelligence applications in virtually every aspect of today's life, these additional demands ...

EPFL2024

Graphene-enhanced ferroelectric domain wall high-output memristor

Mihai Adrian Ionescu, Igor Stolichnov, Ali Gilani, Sadegh Kamaei Bahmaei, Felix Risch

Recent studies on memristive materials and technologies have expanded beyond conventional memory elements, driven by their potential application in novel information processing concepts. Among these materials, conductive domain walls in ferroics are especi ...

AIP American Institute of Physics2024

Label-Free C-Reactive Protein Si Nanowire FET Sensor Arrays With Super-Nernstian Back-Gate Operation

Mihai Adrian Ionescu, Yann Christophe Sprunger, Luca Capua, Felix Risch, Ron Gill, Aristea Grammoustianou

We present a CMOS-compatible double gate and label-free C-reactive protein (CRP) sensor, based on silicon on insulator (SOI) silicon nanowires arrays. We exploit a reference subtracted detection method and a super-Nernstian internal amplification given by ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022

Giant switchable non thermally-activated conduction in 180 degrees domain walls in tetragonal Pb(Zr,Ti)O-3

Mihai Adrian Ionescu, Igor Stolichnov, Felix Risch

Conductive domain walls in ferroelectrics offer a promising concept of nanoelectronic circuits with 2D domain-wall channels playing roles of memristors or synoptic interconnections. However, domain wall conduction remains challenging to control and pA-rang ...

Nature Portfolio2022