Results 21 to 30 of about 3,198,521 (185)

Organic radical ferroelectric crystals with martensitic phase transition

open access: yesNature Communications, 2023
Organic martensitic compounds are an emerging type of smart material with intriguing physical properties including thermosalient effect, ferroelasticity, and shape memory effect.
Nan Zhang   +6 more
doaj   +1 more source

A Graphene-Edge Ferroelectric Molecular Switch [PDF]

open access: yesNano Letters, 2018
We show that polar molecules (water, ammonia, and nitrogen dioxide) adsorbed solely at the exposed edges of an encapsulated graphene sheet exhibit ferroelectricity, collectively orienting and switching reproducibly between two available states in response to an external electric field.
José M. Caridad   +9 more
openaire   +2 more sources

Multiaxial Molecular Ferroelectrics with a Large Viable Temperature Range

open access: yes, 2022
Molecular ferroelectrics, due to their structural diversity, tunability, and ease of handling, have received widespread attention, which are viable alternatives or supplements to traditional ceramic ferroelectrics, and are expected to solve increasingly ...
Li-Zhuang Chen (1733959)   +6 more
core   +1 more source

Enantiomorphic Perovskite Ferroelectrics with Circularly Polarized Luminescence

open access: yes, 2020
Materials with circularly polarized luminescence (CPL) activity have immense potential applications in molecular switches, optical sensors, information storage, asymmetric photosynthesis, 3D optical displays, biological probe, and spintronic devices ...
Ji-Xing Gao (1432822)   +4 more
core   +5 more sources

On the molecular origins of the ferroelectric splay nematic phase [PDF]

open access: yesNature Communications, 2021
AbstractNematic liquid crystals have been known for more than a century, but it was not until the 60s–70s that, with the development of room temperature nematics, they became widely used in applications. Polar nematic phases have been long-time predicted, but have only been experimentally realized recently.
Richard J. Mandle   +3 more
openaire   +9 more sources

High-Temperature Metal-Free Molecular Ferroelectrics with Large Spontaneous Polarization

open access: yes, 2023
In the past two decades, numerous molecular ferroelectrics have been reported. However, metal-free molecular ferroelectrics with high working temperatures and large spontaneous polarizations are still uncommon. Herein, we present two metal-free molecular
Kai-Ge Gao   +7 more
core   +1 more source

The First Ring Enlargement Induced Large Piezoelectric Response in a Polycrystalline Molecular Ferroelectric

open access: yesAdvanced Science, 2023
Inorganic ferroelectrics have long dominated research and applications, taking advantage of high piezoelectric performance in bulk polycrystalline ceramic forms.
Yong Ai   +8 more
doaj   +1 more source

Ferroelectric semiconductor junctions based on graphene/In2Se3/graphene van der Waals heterostructures [PDF]

open access: yes, 2021
The miniaturization of ferroelectric devices offers prospects for non-volatile memories, low-power electrical switches and emerging technologies beyond existing Si-based integrated circuits.
Makarovskiy, Oleg   +18 more
core   +1 more source

Ferroelectricity at molecular level

open access: yesPhase Transitions, 2004
The synthesis of ultrathin ferroelectric nanostructures by the Langmuir–Blodgett method and their properties are reviewed. It is shown that ferroelectricity exists in one monolayer of the ferroelectric P(VDF-TrFE) copolymer, i.e., at the molecular level. The specific characteristics of switching of ultrathin ferroelectric films are established.
Blinov, L. M.   +8 more
openaire   +2 more sources

Electroresistance and electro-optic effects in molecular ferroelectrics

open access: yesAPL Materials, 2020
Molecular ferroelectrics are often considered as an alternative to inorganic ferroelectrics due to their structural diversity, optical transparency, and low-temperature solution processing.
Yong Hu, Shenqiang Ren
doaj   +1 more source

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