Role of oxygen vacancies in ferroelectric or resistive switching hafnium oxide

J Lee, K Yang, JY Kwon, JE Kim, DI Han, DH Lee… - Nano …, 2023 - Springer
HfO2 shows promise for emerging ferroelectric and resistive switching (RS) memory devices
owing to its excellent electrical properties and compatibility with complementary metal oxide …

Hafnia-Based Ferroelectric Memory: Device Physics Strongly Correlated with Materials Chemistry

H Choi, YH Cho, SH Kim, K Yang… - The Journal of Physical …, 2024 - ACS Publications
Hafnia-based ferroelectrics and their semiconductor applications are reviewed, focusing on
next-generation dynamic random-access-memory (DRAM) and Flash. The challenges of …

Mitigation of field-driven dynamic phase evolution in ferroelectric Hf0. 5Zr0. 5O2 films by adopting oxygen-supplying electrode

Y Lee, SH Kim, HW Jeong, GH Park, J Lee… - Applied Surface …, 2024 - Elsevier
Abstract Ferroelectricity in (Hf, Zr) O 2 films under 10 nm has been correlated with various
factors, including dopant, oxygen deficiency, strain, and surface energy. Owing to their …

Exploring tungsten-oxygen vacancy synergy: Impact on leakage characteristics in Hf0. 5Zr0. 5O2 ferroelectric thin films

X Wang, M Wu, T Zhang, B Cui, YC Li, J Liu… - Applied Physics …, 2024 - pubs.aip.org
The recent discovery of ferroelectric properties in HfO 2 has sparked significant interest in
the fields of nonvolatile memory and neuromorphic computing. Yet, as device scaling …

Oxygen Vacancy Modulation With TiO₂ Stack Interface Engineering for Ferroelectric Hf0.5Zr0.5O₂ Thin Films

X Wang, M Wu, B Cui, Y Li, Y Wu, Y Wen… - IEEE Electron …, 2023 - ieeexplore.ieee.org
Since the discovery of ferroelectric switching in hafnium-based thin films, this family of
materials has garnered significant attention. However, their higher coercive field not only …

Optimization of the 4 nm-Thick Hf1–xZrxO2 Film with Low Operating Voltage and High Endurance for Ferroelectric Random Access Memory

HS Park, S Choi, KD Kim, MK Yeom… - ACS Applied …, 2024 - ACS Publications
The integration of ferroelectric-doped HfO2 thin films in advanced memory has been
impeded by high coercive fields (EC), requiring high operation voltages. The extremely …

Large ferroelectricity in Hf 0.85 Ce 0.15 O 2− δ polycrystalline thin films via lattice expansion

H Li, J Tu, G **, X Liu, X Liu, S Du, D Lu, D Zu… - Inorganic Chemistry …, 2024 - pubs.rsc.org
The discovery of ferroelectricity in HfO2-based thin films has strongly energized the field of
integrated semiconductor devices. To expand the physical applications of HfO2-based thin …

Effect of Electrode Material on the Polarization Switching Kinetics of Hf0.5Zr0.5O2 Film

DH Lee, GH Park, SH Kim, K Yang… - IEEE Electron …, 2023 - ieeexplore.ieee.org
Electrode materials can significantly impact the chemical and physical properties and
polarization switching kinetics of ferroelectric Hf0. 5Zr0. 5O2 (HZO) films deposited through …

Atomic-Level Stoichiometry Control of Ferroelectric HfxZryOz Thin Films by Understanding Molecular-Level Chemical Physical Reactions

NL Trinh, B Gu, K Yang, CT Nguyen, B Lee, HM Kim… - ACS Nano, 2025 - ACS Publications
HfO2-based thin films have garnered significant interest for integrating robust ferroelectricity
into next-generation memory and logic chips, owing to their applicability with modern Si …

[HTML][HTML] Phase transitions in ferroelectric ZrO2 thin films

RMP Pereira, MC Istrate, FG Figueiras, V Lenzi… - Materials Science in …, 2024 - Elsevier
In this work, the formation of the orthorhombic phase of ZrO 2 together with the minor
monoclinic phase were elucidated by X-ray diffraction and transmission electron …