Results 1 to 10 of about 164,803 (104)

On the permittivity of titanium dioxide [PDF]

open access: yesScientific Reports, 2021
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   +4 more sources

Quantum Monte Carlo study of static potential in graphene [PDF]

open access: yes, 2017
In this paper the interaction potential between static charges in suspended graphene is studied within the quantum Monte Carlo approach. We calculated the dielectric permittivity of suspended graphene for the set of temperatures and extrapolated our ...
Astrakhantsev, N. Yu.   +4 more
core   +2 more sources

The Role of Probe Attenuation in the Time-Domain Reflectometry Characterization of Dielectrics [PDF]

open access: yes, 2010
The influence of the measurement setup on the estimation of dielectric permittivity spectra from time-domain reflectometry (TDR) responses is investigated.
Ferraris, S.   +2 more
core   +1 more source

Effective dielectric constant of periodic composite materials [PDF]

open access: yes, 1996
We present computer simulation data for the effective permittivity (in the quasistatic limit) of a system composed of discrete inhomogeneities of permittivity e1, embedded in a three-dimensional homogeneous matrix of permittivity e2.
Beroual, Abderrahmane   +3 more
core   +6 more sources

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

Dielectric and polarization experiments in high loss dielectrics: a word of caution [PDF]

open access: yes, 2008
The recent quest for improved functional materials like high permittivity dielectrics and/or multiferroics has triggered an intense wave of research. Many materials have been checked for their dielectric permittivity or their polarization state.
Lines M. E.   +5 more
core   +4 more sources

Abnormal enhancement of electric field inside a thin permittivity-near-zero object in free space

open access: yes, 2010
It is found that the electric field can be enhanced strongly inside a permittivity-near-zero object in free space, when the transverse cross section of the object is small and the length along the propagation direction of the incident wave is large ...
J. A. Stratton   +3 more
core   +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

Effective Permittivity of a Statistically Inhomogeneous Medium with Strong Permittivity Fluctuations [PDF]

open access: yesProgress In Electromagnetics Research, 2004
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 ...
N. P. Zhuck   +2 more
openaire   +1 more source

Spectral theory of electromagnetic scattering by a coated sphere

open access: yes, 2017
In this paper, we introduce an alternative representation of the electromagnetic field scattered from a homogeneous sphere coated with a homogeneous layer of uniform thickness.
Forestiere, Carlo   +2 more
core   +1 more source

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