Results 1 to 10 of about 204,595 (365)

Emergence of ferroelectricity in a nonferroelectric monolayer

open access: yesNature Communications, 2023
Ferroelectricity in ultrathin two-dimensional (2D) materials has attracted broad interest due to potential applications in nonvolatile memory, nanoelectronics and optoelectronics.
Wenhui Li   +11 more
doaj   +2 more sources

Edge polarization topology integrated with sliding ferroelectricity in Moiré system [PDF]

open access: yesNature Communications
Van der Waals moiré heterostructure have been found to exhibits a robust interfacial ferroelectricity down to atomic thickness, and discovering and understanding the complex polarization state in moiré systems is of fundamental interest to condensed ...
Wen-Cheng Fan   +12 more
doaj   +2 more sources

Fractional quantum ferroelectricity

open access: yesNature Communications, 2023
For an ordinary ferroelectric, the magnitude of the spontaneous electric polarization is at least one order of magnitude smaller than that resulting from the ionic displacement of the lattice vectors, and the direction of the spontaneous electric ...
Junyi Ji   +3 more
doaj   +3 more sources

Room temperature ferroelectricity in monolayer graphene sandwiched between hexagonal boron nitride [PDF]

open access: yesNature Communications
The ferroelectricity in stacked van der Waals multilayers through interlayer sliding holds great promise for ultrathin high-density memory devices, yet mostly subject to weak polarization and cryogenic operating condition.
Fanrong Lin   +11 more
doaj   +2 more sources

Electronic ferroelectricity in monolayer graphene moiré superlattices [PDF]

open access: yesNature Communications
Extending ferroelectric materials to two-dimensional limit provides versatile applications for the development of next-generation nonvolatile devices.
Le Zhang   +9 more
doaj   +2 more sources

Ferroelectricity in biological building blocks: Slipping on a banana peel?

open access: yesJournal of Advanced Dielectrics, 2023
Ferroelectricity in biological system has been anticipated both theoretically and experimentally over the past few decades. Claims of ferroelectricity in biological systems have given rise to confusion and methodological controversy.
Syed A. M. Tofail
doaj   +1 more source

Ferroelectricity enhancement in ferroelectric nanotubes [PDF]

open access: yesPhase Transitions, 2007
In this paper we study the size effects of the ferroelectric nanotube phase diagrams and polar properties allowing for effective surface tension and depolarization field influence. The approximate analytical expression for the paraelectric-ferroelectric transition temperature dependence on the radii of nanotube, polarization gradient coefficient ...
Eugene A. Eliseev   +2 more
openaire   +3 more sources

A ferroelectric memristor [PDF]

open access: yesNature Materials, 2012
Memristors are continuously tunable resistors that emulate synapses. Conceptualized in the 1970s, they traditionally operate by voltage-induced displacements of matter, but the mechanism remains controversial. Purely electronic memristors have recently emerged based on well-established physical phenomena with albeit modest resistance changes.
André Chanthbouala   +14 more
openaire   +6 more sources

The Rise of Ferroelectricity at Nanoscale: Nanoelectronics is rediscovering the ferroelectricity

open access: yesIEEE Nanotechnology Magazine, 2021
We present a comprehensive review of the emerging nanoscale ferroelectric materials used in novel nanoelectronics devices. First, we outline specific physical and electronic properties of ferroelectric materials, then we focus on two main classes of ferroelectrics based on hafnium oxide (HfO2) and 2D materials.
Mircea Dragoman   +5 more
openaire   +3 more sources

Biferroelectricity of a homochiral organic molecule in both solid crystal and liquid crystal phases

open access: yesNature Communications, 2022
Ferroelectricity normally exists in either solid crystals or liquid crystals. Here, the authors report a homochiral organic compound which shows ferroelectricity in both solid crystal and liquid crystal phases.
Xian-Jiang Song   +8 more
doaj   +1 more source

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