Results 11 to 20 of about 394,351 (300)

Alternative Gate Dielectric Materials [PDF]

open access: yesECS Transactions, 2006
Alternative high-k materials are being researched as a replacement for SiON. At present HfSiON is the most popular material because of good transistor performance. Still, issues such as threshold voltage control and a limited k-value improvement encourage continuing material screening. In this paper, we give a short overview of some of the work
Van Elshocht S   +19 more
openaire   +4 more sources

Modification of physical properties of Ba(Ni1/3Nb2/3)O3 ceramics through ordered domain engineering

open access: yesJournal of Materiomics, 2022
Ordered domain engineering has been further developed for modifying and improving physical properties in complex perovskite ceramics. In the present work, Ba(Ni1/3Nb2/3)O3 ceramic is taken as a typical example for ordered domain engineering, in which the
Rui Da Shi   +3 more
doaj   +1 more source

Repulsive Casimir forces between solid materials with high refractive index intervening liquids [PDF]

open access: yes, 2010
In order to explore repulsive Casimir/van der Waals forces between solid materials with liquid as the intervening medium, we analyze dielectric data for a wide range of materials as for example PTFE, polystyrene, silica and more than twenty liquids ...
G. Palasantzas   +2 more
core   +4 more sources

Room-temperature ferroelectricity in A-site ordered Ruddlesden-Popper Li2CaTa2O7 ceramics

open access: yesJournal of Materiomics, 2020
In the present work, the crystal structure, ferroelectric and dielectric properties of the dense single-phase Li2CaTa2O7 ceramics with A-site ordered double-layer Ruddlesden-Popper structures have been investigated by the experiments and first-principles
B.H. Zhang   +4 more
doaj   +1 more source

High energy storage properties in CaLaTiO3-modified NaNbO3-based lead-free antiferroelectric ceramics

open access: yesJournal of Advanced Dielectrics, 2023
In this work, (1 [Formula: see text])(0.92NaNbO3–0.08BaTiO3)–[Formula: see text]Ca[Formula: see text]La[Formula: see text]TiO3 (NNBT – [Formula: see text]CLT) ceramics were successfully designed and prepared by the solid-state reaction method ...
Cen Liang   +5 more
doaj   +1 more source

High-K dielectric sulfur-selenium alloys. [PDF]

open access: yes, 2019
Upcoming advancements in flexible technology require mechanically compliant dielectric materials. Current dielectrics have either high dielectric constant, K (e.g., metal oxides) or good flexibility (e.g., polymers).
Ajayan, Pulickel M   +20 more
core   +2 more sources

High dielectric constant and low temperature ferroelectric-phase-transition in Ca, Pb co-doped BiFeO3

open access: yesResults in Physics, 2021
BiFeO3 was co-doped with (Ca, Pb) to obtain Bi1-x(Ca1/2Pb1/2)xFeO3 (x = 0, 0.1 and 0.3) and their structural, morphological, dielectric and ferroelectric properties were studied.
Rida Ahmed   +5 more
doaj   +1 more source

Giant room temperature elastocaloric effect in metal-free thin-film perovskites

open access: yesnpj Computational Materials, 2021
Solid-state refrigeration which is environmentally benign has attracted considerable attention. Mechanocaloric (mC) materials, in which the phase transitions can be induced by mechanical stresses, represent one of the most promising types of solid-state ...
Cheng Li   +7 more
doaj   +1 more source

The Role of the Accumulated Surface Charge on Nanoparticles in Improving the Breakdown Strength of Liquid and Solid Insulation

open access: yesEnergies, 2022
In this paper, the role of the accumulated surface charge on the surfaces of nanoparticles on breakdown strength for liquid and solid dielectrics is presented. The breakdown strengths of a nanofilled liquid dielectric and a solid dielectric are evaluated.
Mohamed E. Ibrahim   +4 more
doaj   +1 more source

Anisotropy, phonon modes, and lattice anharmonicity from dielectric function tensor analysis of monoclinic cadmium tungstate [PDF]

open access: yes, 2017
We determine the frequency dependence of four independent CdWO$_4$ Cartesian dielectric function tensor elements by generalized spectroscopic ellipsometry within mid-infrared and far-infrared spectral regions.
Knight, S.   +3 more
core   +3 more sources

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