Fluorite‐Structured Ferroelectric and Antiferroelectric Materials: A Gateway of Miniaturized Electronic Devices

F Ali, T Ali, D Lehninger, A Sünbül… - Advanced Functional …, 2022 - Wiley Online Library
Ferroelectric (FE) and antiferroelectric (AFE) materials are used for several memory‐related
and energy‐related applications. Perovskite materials (eg, bulk ceramics) remain the most …

Nanoelectromechanical resonators for gigahertz frequency control based on hafnia–zirconia–alumina superlattices

T Tharpe, E Hershkovitz, F Hakim, H Kim… - Nature Electronics, 2023 - nature.com
Many electronic systems depend on microelectromechanical system and
nanoelectromechanical system resonators for frequency control applications such as clock …

Ferroelectrics at the nanoscale: materials and devices–a critical review

M Dragoman, M Aldrigo, D Dragoman… - Critical Reviews in …, 2023 - Taylor & Francis
Following the initial report on ferroelectricity in hafnia (HfO2) more than a decade ago, the
researchers' interest in this intriguing material system has constantly increased due to the …

HfO2‐Based Ferroelectrics Applications in Nanoelectronics

M Dragoman, M Aldrigo, D Dragoman… - physica status solidi …, 2021 - Wiley Online Library
This article is dedicated to HfO2‐based ferroelectrics applications in nanoelectronics,
especially to topics not well developed up to now, such as microwaves, energy harvesting …

Tunable microwave dual-band patch antenna through integration of metamaterials and nanoscale ferroelectrics

M Aldrigo, AC Tasolamprou, D Vasilache… - Physical Review …, 2023 - APS
We present a CMOS-compatible silicon-based patch antenna providing a tunable dual-band
behavior in the 8–12 GHz frequency range. The dual-band operation is induced by an …

Tunable Microwave Filters Using HfO2-Based Ferroelectrics

M Aldrigo, M Dragoman, S Iordanescu, F Nastase… - Nanomaterials, 2020 - mdpi.com
In this paper, we present microwave filters that are based on 6-nm-thick ferroelectric thin
films of hafnium oxide doped with zirconium (HfZrO), which are tunable continuously in …

The rise of ferroelectricity at nanoscale: Nanoelectronics is rediscovering the ferroelectricity

M Dragoman, M Aldrigo, D Dragoman… - IEEE …, 2021 - ieeexplore.ieee.org
We present a comprehensive review of the emerging nanoscale ferroelectric materials used
in novel nanoelectronics devices. First, we outline specific physical and electronic properties …

Passivation properties of HfO2-SiO2 mixed metal oxide thin films with low reflectivity on silicon substrates for semiconductor devices

A Uzum, I Kanmaz - Thin Solid Films, 2021 - Elsevier
Abstract HfO 2-SiO 2 mixed oxide-based thin films were introduced in this work, and their
passivation and anti-reflection properties were examined by using carrier lifetime, x-ray …

Nonlinear circuit model of IDCs on ferroelectric nanomaterial for reconfigurable applications

S Trovarello, ADF Di Renzo, M Aldrigo… - 2022 52nd …, 2022 - ieeexplore.ieee.org
This work presents the nonlinear model of voltage-controlled Interdigitated Capacitors
(IDCs) based on ferroelectric nanomaterials to realize tunable radiofrequency (RF) circuits …

Gain tunability of graphene patch antennas for the ISM band at 24 GHz

M Aldrigo, M Dragoman, S Iordanescu… - 2020 International …, 2020 - ieeexplore.ieee.org
In this paper, we present a coplanar patch antenna (CPA), based on a graphene monolayer
deposited on a thin film of zirconium-doped hafnium oxide ferroelectric (HfZrO), working at …