The fundamentals and applications of ferroelectric HfO2

U Schroeder, MH Park, T Mikolajick… - Nature Reviews …, 2022 - nature.com
Since the first report of ferroelectricity in a Si-doped HfO2 film in 2011, HfO2-based materials
have attracted much interest from the ferroelectric materials and devices community …

From ferroelectric material optimization to neuromorphic devices

T Mikolajick, MH Park, L Begon‐Lours… - Advanced …, 2023 - Wiley Online Library
Due to the voltage driven switching at low voltages combined with nonvolatility of the
achieved polarization state, ferroelectric materials have a unique potential for low power …

Reversible oxygen migration and phase transitions in hafnia-based ferroelectric devices

P Nukala, M Ahmadi, Y Wei, S De Graaf, E Stylianidis… - Science, 2021 - science.org
Unconventional ferroelectricity exhibited by hafnia-based thin films—robust at nanoscale
sizes—presents tremendous opportunities in nanoelectronics. However, the exact nature of …

Scale-free ferroelectricity induced by flat phonon bands in HfO2

HJ Lee, M Lee, K Lee, J Jo, H Yang, Y Kim, SC Chae… - Science, 2020 - science.org
Discovery of robust yet reversibly switchable electric dipoles at reduced dimensions is
critical to the advancement of nanoelectronics devices. Energy bands flat in momentum …

Ferroelectricity in layered bismuth oxide down to 1 nanometer

Q Yang, J Hu, YW Fang, Y Jia, R Yang, S Deng, Y Lu… - Science, 2023 - science.org
Atomic-scale ferroelectrics are of great interest for high-density electronics, particularly field-
effect transistors, low-power logic, and nonvolatile memories. We devised a film with a …

HfO2-based ferroelectrics: From enhancing performance, material design, to applications

H Chen, X Zhou, L Tang, Y Chen, H Luo… - Applied Physics …, 2022 - pubs.aip.org
Nonvolatile memories are in strong demand due to the desire for miniaturization, high-speed
storage, and low energy consumption to fulfill the rapid developments of big data, the …

Roadmap on ferroelectric hafnia-and zirconia-based materials and devices

JPB Silva, R Alcala, UE Avci, N Barrett, L Bégon-Lours… - APL Materials, 2023 - pubs.aip.org
Ferroelectric hafnium and zirconium oxides have undergone rapid scientific development
over the last decade, pushing them to the forefront of ultralow-power electronic systems …

Progress and future prospects of negative capacitance electronics: A materials perspective

M Hoffmann, S Slesazeck, T Mikolajick - APL Materials, 2021 - pubs.aip.org
Negative capacitance in ferroelectric materials has been suggested as a solution to reduce
the power dissipation of electronics beyond fundamental limits. The discovery of …

The effects of oxygen vacancies on ferroelectric phase transition of HfO2-based thin film from first-principle

Y Zhou, YK Zhang, Q Yang, J Jiang, P Fan… - Computational Materials …, 2019 - Elsevier
The newly discovered hafnium oxide (HfO 2)-based ferroelectric film shows many
advantages over the traditional perovskite films in the application of information storage …

Interplay between oxygen defects and dopants: effect on structure and performance of HfO 2-based ferroelectrics

M Materano, PD Lomenzo, A Kersch… - Inorganic Chemistry …, 2021 - pubs.rsc.org
Ten years after the first report on ferroelectricity in HfO2, researchers are still occupied
unraveling the different causes behind this phenomenon. Among them, oxygen related …