Results 41 to 50 of about 284,309 (382)

CaCu3Ti4O12 ceramics from co-precipitation method: Dielectric properties of pellets and thick films [PDF]

open access: yes, 2009
Dielectric properties of CaCu3Ti4O12 (CCTO)-based ceramics and thick films (e ∼50m) prepared from powders synthesized by a soft chemistry method (co-precipitation) are presented and discussed.
Barbier, Bertrand   +7 more
core   +3 more sources

Nonlinear effects in a cell with a solid electrolyte based on protonated potassium polytitanate [PDF]

open access: yesЭлектрохимическая энергетика, 2022
In this paper, the electrochemical and electrophysical properties of protonated potassium polytitanate synthesized at pH values varying from 3.11 to 8.88 depending on the magnitude of the polarization voltage and the magnitude of the measured signal were
Makarova, Anna Dmitrievna   +7 more
doaj   +1 more source

Complex permittivity of a biased superlattice [PDF]

open access: yesJournal of Applied Physics, 2008
We study the intersubband response in a superlattice subjected to a homogeneous electric field (a biased superlattice with equipopulated levels) within the tight-binding approximation. We consider the interplay between homogeneous and inhomogeneous mechanisms of broadening.
F. T. Vasko   +2 more
openaire   +3 more sources

Microwave Planar Sensors for Fully Characterizing Magneto-Dielectric Materials

open access: yesIEEE Access, 2020
This paper presents two complementary split-ring resonator (CSRR)-based sensors for full characterization of magneto-dielectric materials. The first proposed sensor is designed by loading the microstrip line with a CSRR, while the second one is by ...
Wen-Sheng Zhao   +8 more
doaj   +1 more source

Electromagnetic tunneling through a single-negative slab paired with a double-positive bi-layer [PDF]

open access: yes, 2011
We show that resonant tunneling of electromagnetic fields can occur through a three-layer structure composed of a single-negative (i.e., either negative-permittivity or negative-permeability) slab paired with bi-layer made of double-positive (i.e ...
Andrea Alù   +5 more
core   +3 more sources

Peculiarities of the interface between high-permittivity dielectrics and semiconductors

open access: yesFrontiers in Materials, 2014
Replacement of the silicon dioxide thin films in metal-oxide-semiconductor structures for microelectronics with high permittivity dielectrics (high-k) is a crucial step in the further down-scaling of microelectronic devices.
Nenad eNovkovski
doaj   +1 more source

A Fractional Model of Complex Permittivity of Conductor Media with Relaxation: Theory vs. Experiments

open access: yesFractal and Fractional, 2022
Moving from the study of plasmonic materials with relaxation, in this work we propose a fractional Abraham–Lorentz-like model of the complex permittivity of conductor media.
Armando Ciancio   +3 more
doaj   +1 more source

Permittivity measurement of minerals

open access: yesJournal of Physics: Conference Series, 2013
An electromagnetic logging tool moves along a borehole to measure continuously the complex dielectric permittivity of the rock formation. Dielectric properties of formation fluids and minerals are required to interpret the log. Methods to measure mineral permittivities are reviewed and experimental results are described for various particulate minerals.
A Clarke, G H Meeten, V J Anderson
openaire   +2 more sources

Ionic Transportation and Dielectric Properties of YF3:Eu3+ Nanocrystals

open access: yesNanomaterials, 2018
The ionic transportation and dielectric properties of YF3:Eu3+ nanocrystals are investigated by AC impedance spectroscopy. The ion diffusion coefficient and conductivity increase along with the doping concentration and reach their highest values at 4% of
Xiaoyan Cui   +8 more
doaj   +1 more source

Dielectric Properties and Fire Safety of Mineral Oil and Low-Viscosity Natural Ester Mixtures in Various Concentrations

open access: yesEnergies, 2023
This paper presents the results of testing the electrical and fire properties of mineral oil and low-viscosity natural ester mixtures. Properties such as breakdown voltage, relative permeability, dispersion coefficient, conductivity, flash and burn point,
Grzegorz Dombek, Jarosław Gielniak
doaj   +1 more source

Home - About - Disclaimer - Privacy