Results 11 to 20 of about 15,250 (308)

Proton-controlled molecular ionic ferroelectrics

open access: yesNature Communications, 2023
Molecular ferroelectric materials consist of organic and inorganic ions held together by hydrogen bonds, electrostatic forces, and van der Waals interactions.
Yulong Huang   +5 more
doaj   +2 more sources

Switchable tribology of ferroelectrics [PDF]

open access: yesNature Communications
Switchable tribological properties of ferroelectrics offer an alternative route to visualize and control ferroelectric domains. Here, we observe the switchable friction and wear behavior of ferroelectrics using a nanoscale scanning probe—down domains ...
Seongwoo Cho   +13 more
doaj   +2 more sources

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

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

Kittel’s Brief Comments Endorsing an Alternative View on Barium Titanate

open access: yesCondensed Matter, 2021
Charles Kittel has written a masterpiece book, “Introduction to Solid State Physics” (ISSP). He mentions in the chapter on ferroelectrics in detail that barium titanate is the typical displacive-type ferroelectric compound where the Ti4+ displacement ...
Akira Kojima
doaj   +1 more source

Study of Constitutive Behavior of Ferroelectrics via Self-Consistent Modeling and Neutron Diffraction [PDF]

open access: yes, 2007
The central goal of this study is to develop a reliable self-consistent model to describe the constitutive behavior of polycrystalline ferroelectrics and to predict their lattice strain and texture evolution. Starting with the model developed by Huber et
Motahari, Seyed-Maziar
core   +1 more source

Porous (Ba,Sr)TiO3 ceramics for tailoring dielectric and tunability properties: Modelling and experiment [PDF]

open access: yesProcessing and Application of Ceramics, 2017
3D Finite Element Method simulations were employed in order to describe tunability properties in anisotropic porous paraelectric structures. The simulations predicted that properties of a ceramic can be tailored by using various levels of porosity ...
Roxana E. Stanculescu   +6 more
doaj   +1 more source

Magnetoelectric Effect in Amorphous Ferromagnetic FeCoSiB/Langatate Monolithic Heterostructure for Magnetic Field Sensing

open access: yesSensors, 2023
This paper investigates the possibilities of creating magnetic field sensors using the direct magnetoelectric (ME) effect in a monolithic heterostructure of amorphous ferromagnetic material/langatate.
L. Y. Fetisov   +9 more
doaj   +1 more source

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   +2 more sources

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 ...
Morozovska, A. N.   +2 more
openaire   +2 more sources

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