Results 1 to 10 of about 267,780 (226)
On the permittivity of titanium dioxide [PDF]
AbstractConductive rutile TiO2 has received considerable attention recently due to multiple applications. However, the permittivity in conductive, reduced or doped TiO2 appears to cause controversy with reported values in the range 100–10,000. In this work, we propose a method for measurements of the permittivity in conductive, n-type TiO2 that ...
Bonkerud, Julie+4 more
openaire +6 more sources
Determination of effective permittivity and permeability of metamaterials from reflection and transmission coefficients [PDF]
We analyze the reflection and transmission coefficients calculated from transfer matrix simulations on finite lengths of electromagnetic metamaterials, to determine the effective permittivity ~«! and permeability ~m!
David R. Smith+3 more
semanticscholar +3 more sources
Permittivity-Asymmetric Quasi-Bound States in the Continuum. [PDF]
Breaking the in-plane geometric symmetry of dielectric metasurfaces allows us to access a set of electromagnetic states termed symmetry-protected quasi-bound states in the continuum (qBICs).
Rodrigo Berté+9 more
semanticscholar +1 more source
Dielectric elastomers (DEs) are widely used in soft actuators but existing DE actuators often require high driving electrical fields. Here the authors demonstrate that introducing cyanoethyl cellulose into plasticized PVC gel confers high dielectric ...
Jianjian Huang+4 more
semanticscholar +1 more source
Dynamic variation of the dielectric permittivity of elastomers with mechanical constraints
Elastomers are commonly used as insulators or actuators in important fields such as robotics and electronics. The performance of elastomers is strongly influenced by their dielectric permittivity while determining the dielectric permittivity of ...
Pan Jia, Xianghe Zheng, Jianyou Zhou
doaj +1 more source
BARIUM AND CALCIUM NIOBATE CERAMICS: SPECIFIC FEATURES OF THEIR STRUCTURE
We obtained and studied the samples of ceramics based on barium niobate and calcium niobate CaxBa1-xNb2O6 with different percentages of barium and calcium (x=1; 0,9; 0,8; 0,7; 0,6; 0,5; 0,4; 0,3; 0,2; 0,1 and 0).
O.S. Guseva+3 more
doaj +1 more source
Electrical and electromagnetic properties of isolated carbon nanotubes and carbon nanotube-based composites [PDF]
Isolated carbon nanotubes (CNTs), CNT films and CNT-polymer nanocomposites are a new generation of materials with outstanding mechanical, thermal, electrical and electromagnetic properties. The main objective of this article is to provide a comprehensive
Alireza Nikfarjam+2 more
doaj +1 more source
Negative Permittivity Behavior in Flexible Carbon Nanofibers- Polydimethylsiloxane Films
Flexible electronic devices have recently become a research hotspot due to their potential in different applications. However, there is a lack of studies about flexible metamaterials with negative parameters.
Haikun Wu+9 more
semanticscholar +1 more source
Hexagonal boron nitride nanosheets (BNNSs) are two-dimensional nanomaterials with graphitic-like layered nanostructures, high surface areas, and large aspect ratios.
He Li+5 more
doaj +1 more source
Effective Permittivity of a Statistically Inhomogeneous Medium with Strong Permittivity Fluctuations [PDF]
Most previous multiple-scattering theories for electromagnetic waves in strongly fluctuating media are limited by the assumption of statistical homogeneity of media. In the paper, a lossy electrically isotropic random medium is considered whose mean permittivity distribution, as well as the multipoint permittivity's moments are invariant under ...
S. N. Shulga+2 more
openaire +2 more sources