Results 21 to 30 of about 38,577 (260)

Effects of temperature and storage period on polarization of poly(vinylidene fluoride-trifluoroethylene) ultrathin films

open access: yesCailiao gongcheng, 2021
The polarization switching properties of P(VDF-TrFE) ultrathin films with different storage periods were measured. The dependence of polarization properties on temperature and storage period was investigated.
SHI Zhi   +6 more
doaj   +1 more source

Stochastic multistep polarization switching in ferroelectrics [PDF]

open access: yesPhysical Review B, 2018
Consecutive stochastic 90° polarization switching events, clearly resolved in recent experiments, are described by a new nucleation and growth multi-step model. It extends the classical Kolmogorov-Avrami-Ishibashi approach and includes possible consecutive 90°- and parallel 180°-switching events.
Genenko, YA   +5 more
openaire   +3 more sources

Reliable polarization switching of BiFeO 3 [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2012
As a room temperature multi-ferroic with coexisting anti-ferromagnetic, ferroelectric and ferroelastic orders, BiFeO 3 has been extensively studied to realize magnetoelectric devices that enable manipulation of magnetic ordering by an electric field. Moreover, BiFeO 3 is a promising candidate
S H, Baek, C B, Eom
openaire   +2 more sources

High-efficiency polarization switching in phase-change-material films at normal incidence

open access: yesResults in Optics
Phase-change materials (PCMs) enable the modification of the polarization of reflected light over nanometer-scale distances. For an isotropic and homogeneous film deposited on planar substrates, this is only possible at oblique angles of incidence, and ...
Kris Bulmer   +2 more
doaj   +1 more source

Critical Dependence of Polarization Phenomena on Conductivity in Ferroelectric Polymers [PDF]

open access: yesЖурнал нано- та електронної фізики, 2014
Experimentally obtained data on the polarization dynamics in polyvinylidene fluoride, a typical ferroe-lectric polymer, are analyzed during initial poling, short circuiting and polarization switching. Considering a two-component structure of the samples,
S.N. Fedosov, H. von Seggern
doaj  

Interplay Between Charge Trapping and Polarization Switching in BEOL-Compatible Bilayer Ferroelectric Tunnel Junctions

open access: yesIEEE Journal of the Electron Devices Society, 2022
We here report a joint experimental and theoretical analysis of polarization switching in ferroelectric tunnel junctions. Our results show that the injection and trapping of charge into the ferroelectric-dielectric stack has a large influence on the ...
R. Fontanini   +11 more
doaj   +1 more source

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

open access: yesFEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise   +5 more
wiley   +1 more source

A straightforward method using the sign of the piezoelectric coefficient to identify the ferroelectric switching mechanism

open access: yesScientific Reports, 2023
Some organic ferroelectrics have two possible switching modes: molecular reorientation and proton transfer. Typical examples include 2,5-dihydroxybenzoic acid (DHBA) and Hdabco-ReO $$_4$$ 4 (dabco = diazabicyclo[2.2.2]octane). The direction and amplitude
Shoji Ishibashi   +2 more
doaj   +1 more source

High-Speed and High-Power Ferroelectric Switching Current Measurement Instrument for Materials with Large Coercive Voltage and Remanent Polarization

open access: yesSensors, 2022
A high-speed and high-power current measurement instrument is described for measuring rapid switching of ferroelectric samples with large spontaneous polarization and coercive field. Instrument capabilities (±200 V, 200 mA, and 200 ns order response) are
Keisuke Yazawa   +2 more
doaj   +1 more source

Neutralization of the PTX3/CD44 axis suppresses TGF‐β1 signaling in kidney fibrosis

open access: yesFEBS Letters, EarlyView.
This study investigates how the PTX3/CD44 axis promotes kidney fibrosis by activating TGF‐β1 signaling. We demonstrate that the neutralizing antibody WHC‐001 effectively inhibits this pathway, suppressing myofibroblast activation and partial epithelial–mesenchymal transition (EMT).
Chao‐Chun Cheng   +8 more
wiley   +1 more source

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