Enhanced ferroelectricity in ultrathin films grown directly on silicon

SS Cheema, D Kwon, N Shanker, R Dos Reis, SL Hsu… - Nature, 2020 - nature.com
Ultrathin ferroelectric materials could potentially enable low-power logic and nonvolatile
memories,. As ferroelectric materials are made thinner, however, the ferroelectricity is …

Emergent ferroelectricity in subnanometer binary oxide films on silicon

SS Cheema, N Shanker, SL Hsu, Y Rho, CH Hsu… - Science, 2022 - science.org
The critical size limit of voltage-switchable electric dipoles has extensive implications for
energy-efficient electronics, underlying the importance of ferroelectric order stabilized at …

Fundamental size limits in ferroelectricity

NA Spaldin - Science, 2004 - science.org
With the continued demand for portability in consumer electronics, it is becoming
increasingly important to understand the effects of miniaturization on the properties of the …

Unveiling the double-well energy landscape in a ferroelectric layer

M Hoffmann, FPG Fengler, M Herzig, T Mittmann… - Nature, 2019 - nature.com
The properties of ferroelectric materials, which were discovered almost a century ago, have
led to a huge range of applications, such as digital information storage, pyroelectric energy …

Critical thickness for ferroelectricity in perovskite ultrathin films

J Junquera, P Ghosez - Nature, 2003 - nature.com
The integration of ferroelectric oxide films into microelectronic devices,, combined with the
size reduction constraints imposed by the semiconductor industry, have revived interest in …

Ferroelectricity at the nanoscale: local polarization in oxide thin films and heterostructures

CH Ahn, KM Rabe, JM Triscone - Science, 2004 - science.org
Ferroelectric oxide materials have offered a tantalizing potential for applications since the
discovery of ferroelectric perovskites more than 50 years ago. Their switchable electric …

Ferroelectricity in ultrathin perovskite films

DD Fong, GB Stephenson, SK Streiffer, JA Eastman… - Science, 2004 - science.org
Understanding the suppression of ferroelectricity in perovskite thin films is a fundamental
issue that has remained unresolved for decades. We report a synchrotron x-ray study of lead …

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 …

Improper ferroelectricity in perovskite oxide artificial superlattices

E Bousquet, M Dawber, N Stucki, C Lichtensteiger… - Nature, 2008 - nature.com
Ferroelectric thin films and superlattices are currently the subject of intensive research,
because of the interest they raise for technological applications and also because their …

A 2D ferroelectric vortex pattern in twisted BaTiO3 freestanding layers

G Sánchez-Santolino, V Rouco, S Puebla, H Aramberri… - Nature, 2024 - nature.com
The wealth of complex polar topologies,,,,,,,,–recently found in nanoscale ferroelectrics
results from a delicate balance between the intrinsic tendency of the materials to develop a …