Organic ferroelectrics

S Horiuchi, Y Tokura - Nature materials, 2008 - nature.com
Ferroelectricity results from one of the most representative phase transitions in solids, and is
widely used for technical applications. However, observations of ferroelectricity in organic …

Hydrogen-bonded small-molecular crystals yielding strong ferroelectric and antiferroelectric polarizations

S Horiuchi, S Ishibashi - Journal of the Physical Society of Japan, 2020 - journals.jps.jp
The development of organic ferroelectrics and antiferroelectrics with significantly improved
performances has recently increased. Their attractive features are environmentally benign …

Strong polarization switching with low-energy loss in hydrogen-bonded organic antiferroelectrics

S Horiuchi, R Kumai, S Ishibashi - Chemical Science, 2018 - pubs.rsc.org
The electric-field-induced phase transition from antipolar to polar structures is at the heart of
antiferroelectricity. We demonstrate direct evidence of antiferroelectricity by applying a …

Ionic versus electronic ferroelectricity in donor–acceptor molecular sequences

S Horiuchi, K Kobayashi, R Kumai… - Chemistry Letters, 2014 - academic.oup.com
Molecular displacement in an alternating chain of donors and acceptors triggers ferroelectric
switching of large electric polarization with a low electric field in some charge-transfer …

Hydrogen-bonded donor–acceptor compounds for organic ferroelectric materials

S Horiuchi, R Kumai, Y Tokura - Chemical communications, 2007 - pubs.rsc.org
Organic ferroelectrics are multifunctional candidates for future organic electronic and optical
devices. In spite of their potential, only a few organic compounds are known to exhibit a …

Polar distortions in hydrogen-bonded organic ferroelectrics

A Stroppa, D Di Sante, S Horiuchi, Y Tokura… - Physical Review B …, 2011 - APS
Although ferroelectric compounds containing hydrogen bonds were among the first to be
discovered, organic ferroelectrics are relatively rare. The discovery of high polarization at …

Are hydrogen-bonded charge transfer crystals room temperature ferroelectrics?

G D'Avino, MJ Verstraete - Physical Review Letters, 2014 - APS
We present a theoretical investigation of the anomalous ferroelectricity of mixed-stack
charge transfer molecular crystals, based on the Peierls-Hubbard model, and first-principles …

Proton-displacive ferroelectricity in neutral cocrystals of anilic acids with phenazine

S Horiuchi, R Kumai, Y Tokura - Journal of Materials Chemistry, 2009 - pubs.rsc.org
Hydrogen bonding in solids has provided diverse attractive issues. Prof. CNR Rao and his
collaborators have made representative achievements on experimental and theoretical …

Computational findings of metastable ferroelectric phases of squaric acid

S Ishibashi, S Horiuchi, R Kumai - Physical Review B, 2018 - APS
Antiferroelectric-to-ferroelectric transitions in squaric acid are simulated by computationally
applying a static electric field. Depending on the direction of the electric field, two different …

Self-organization into ferroelectric and antiferroelectric crystals via the interplay between particle shape and dipolar interaction

K Takae, H Tanaka - … of the National Academy of Sciences, 2018 - National Acad Sciences
Ferroelectricity and antiferroelectricity are widely seen in various types of condensed matter
and are of technological significance not only due to their electrical switchability but also due …