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Anna Varini

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Publications associées (4)

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Vanadium-Doped Hafnium Oxide: A High-Endurance Ferroelectric Thin Film with Demonstrated Negative Capacitance

Emeric Emmanuel Hartmann, Mihai Adrian Ionescu, Igor Stolichnov, Niccolò Martinolli, Anna Varini, Ehsan Ansari

This study proposes and validates a novel CMOS-compatible ferroelectric thin-film insulator made of vanadium-doped hafnium oxide (V:HfO2) by using an optimized atomic layer deposition (ALD) process. Comparative electrical performance analysis of metal-ferr ...

AMER CHEMICAL SOC2025

Wafer-Scale Demonstration of a Highly Sensitive Strain Sensor Based on Polycrystalline VO2

Mihai Adrian Ionescu, Anna Varini, Cyrille Masserey, Zahra Saadat Somaehsofla

Vanadium dioxide (VO2) exhibits structural phase transition that can be triggered by thermal, electrical, and mechanical stimuli, making it a highly interesting material for MEMS/NEMS based sensors and actuators thanks to responsivity and exceptional sensi ...

Institute of Electrical and Electronics Engineers Inc.2025

An Investigation of VO2 Nanowire Arrays for Integrated Sensing. From Non-Stochastic Nanowires to Stochastic Nanostructures

Andrea Iaconeta, Mihai Adrian Ionescu, Andras Kis, Igor Stolichnov, Anna Varini, Cyrille Masserey, Vanessa Conti, Riccardo Chiesa

This paper presents a novel nanoscale platform based on vanadium dioxide (VO2) two-terminal devices shaped like nanowires (NWs). For the first time we report CMOS compatible VO2 two-terminal devices with little-to-no stochasticity in the absence of electro ...

IEEE2025

Pulsed Laser and Atomic Layer Deposition of CMOS-Compatible Vanadium Dioxide: Enabling Ultrathin Phase-Change Films

Mihai Adrian Ionescu, Igor Stolichnov, Anna Varini, Cyrille Masserey, Vanessa Conti, Ehsan Ansari, Zahra Saadat Somaehsofla

American Chemical Society (ACS)2025