Results 21 to 30 of about 139,609 (311)

Dielectric spectroscopy of Tobacco Mosaic Virus [PDF]

open access: yes, 2003
The dielectric properties of the Tobacco Mosaic Virus (TMV) have been measured using time domain dielectric spectroscopy (TDDS) in the temperature range from 1 to 40 jC. A single dielectric dispersion is observed in the MHz range.
Feldman, Yuri   +11 more
core   +1 more source

Electrically tunable dielectric materials and strategies to improve their performances [PDF]

open access: yes, 2010
Electrically tunable dielectric materials have potential applications as various microwave devices, such as tunable oscillators, phase shifters and varactors High dielectric tunability, low dielectric loss tangent and appropriate level of dielectric ...
Li, S.   +5 more
core   +1 more source

Electric-field-controlled magnetism due to field-induced transition of Pna21/R3c in Bi1-xGdxFeO3 ceramics

open access: yesJournal of Materiomics, 2021
BiFeO3 has been recognized as one of the most important room-temperature single-phase multiferroic materials, but it still suffers from several drawbacks especially the weak magnetoelectric coupling.
Jing Chen   +5 more
doaj   +1 more source

Structural and magnetic properties of La0.7Sr0.3MnO3 ferromagnetic thin film grown on PMN-PT by sol–gel method [PDF]

open access: yesJournal of Advanced Dielectrics, 2017
We report the preparation of epitaxial La0.7Sr0.3MnO3 thin films grown on (001)-oriented 0.72Pb(Mg1∕3Nb2∕3)O3-0.28PbTiO3 substrates by the sol–gel technique.
Jing Zhang   +5 more
doaj   +1 more source

Vogel-Fulcher analysis of relaxor dielectrics with the tetragonal tungsten bronze structure : Ba6MNb9O30 (M = Ga, Sc, In) [PDF]

open access: yes, 2015
In-depth analysis of the relaxor behaviour of Ba6MNb9O30 (M= Ga, Sc, In) tetragonal tungsten bronze (TTB) ceramics was carried out. Powder x-ray diffraction and scanning electron microscopy were performed in order to confirm the formation of desired ...
Morrison, Finlay D., Rotaru, Andrei
core   +1 more source

Effect of Temperature on Creeping Flashover Voltage of Nanofilled Oil-Pressboard Insulation

open access: yesIEEE Access, 2020
Creeping flashover (surface discharge) at oil-pressboard interface is considered a serious failure of the insulation system in power transformers. In this paper, creeping flashover voltage at oil-pressboard interface using the concept of nanofluids is ...
Mohamed E. Ibrahim   +3 more
doaj   +1 more source

Dielectric materials, design and realization [PDF]

open access: yesSPIE Proceedings, 2015
It has been the dream of many scientists to create polymeric materials which exhibit simultaneously high dielectric permittivity, low glass transition temperature, and excellent elastic properties. Such materials would be a highly attractive dielectric in electromechanical transducers.
Opris D. M.   +6 more
openaire   +1 more source

Parameter estimation in equivalent circuit analysis of dielectric cure monitoring signals using genetic algorithms. [PDF]

open access: yes, 2005
This communication concerns the treatment of dielectric data obtained from experiments following the chemical hardening process (cure) in thermosetting resins.
Kazilas, Michalis C.   +2 more
core   +1 more source

Density functional investigations on electronic structures, magnetic ordering and ferroelectric phase transition in multiferroic Bi2NiMnO6

open access: yesAIP Advances, 2012
Using the full-potential linearised augmented-plane wave (FP-LAPW) method based on density functional theory (DFT), we have investigated the electronic structures, the magnetic behavior, and the ferroelectric origin of multiferroic Bi2NiMnO6.
Hong Jian Zhao   +2 more
doaj   +1 more source

Phase diagram and dielectric properties of Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 ceramics [PDF]

open access: yesJournal of Advanced Dielectrics, 2015
xPb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3(xPIN–yPMN–zPT) ternary ceramics with morphotropic phase boundary (MPB) composition were synthesized by columbite precursor method.
Dabin Lin   +3 more
doaj   +1 more source

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