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162 983 (0,368s)

Result

Dielectric function

After definition and discussion of the symmetry and basic properties of the linear complex dielectric susceptibility and permittivity tensors in crystals. Then various material types with pronounced dielectric properties (f...

Condensed matter physics (including formerly solid state physics, supercond.)

  • 2024
  • C
  • Link
Result

The Use of Simulation Models for Complex Description of Permittivity of Building Materials

Distribution function of relaxation time mathematically describes frequency dependence of the complex permittivity. Empirical function describing the complex, and thus separated. The permittivity is a function<...

JN - Stavebnictví

  • 2015
  • D
  • Link
Result

Surface functionalization of magnesium oxide and its effect on dielectric properties of composite dielectric

The main aim of this paper was to demonstrate the effect of surface functionalization of magnesium oxide filler by a silane coupling agent on dielectric properties of the whole composite dielectric. The real and imaginary p...

Electrical and electronic engineering

  • 2018
  • Jimp
  • Link
Result

Lattice dynamics in Ba0.7Sr0.3TiO3: study by THz and IR spectroscopy and ab-initio simulations

We report on the experimental and theoretical study of the lattice dynamics in Ba0.7Sr0.3TiO3 in 20-900 K temperature range. Complex dielectric response in the terahertz and factorized form of the dielectric function

BM - Fyzika pevných látek a magnetismus

  • 2010
  • Jx
Result

Evaluation of the Dawson function and its antiderivative needed for the Gaussian broadening of piecewise polynomial functions

model of a complex dielectric function using three special functions, the error is illustrated using elementary and real-world examples of complex dielectric function models.The broadeni...

Optics (including laser optics and quantum optics)

  • 2019
  • Jimp
  • Link
Result

Computer modelling of courses of dielectric quantities

Software is used to model the frequencies dependencies of dielectric quantities (in particular components of the complex permittivity) according to the most widely used distribution function of relaxation times in materials...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2009
  • R
Result

Spectroscopic properties and lattice dynamics of ferroelectrics and related functional oxide ceramics

Dielectric response as a function of frequency for high-permittivity dielectric, discussing the dielectric grain size effect due to a low-permittivity grain-boundary. Attention is then paid to relaxor ferroelectric...

BM - Fyzika pevných látek a magnetismus

  • 2009
  • C
Result

Numerical analysis of dielectric post-wall waveguides

. The final goal of our investigations is to realize the functional dielectric post-wallFunctional post-wall waveguides that are formed by periodically distributed dielectric posts are numerically analyzed. In this...

Optics (including laser optics and quantum optics)

  • 2020
  • D
  • Link
Result

Dielectric function of epitaxial quasi-freestanding monolayer graphene on Si-face 6H-SiC in a broad spectral range

the spectral dependence of the complex dielectric function of quasi-freestanding graphene. Spectral dependence of the dielectric function of graphene was parametrized based......

Condensed matter physics (including formerly solid state physics, supercond.)

  • 2023
  • Jimp
  • Link
Result

Anisotropic dielectric response of lead zirconate crystals in the terahertz and infrared range at low temperature

Polarized terahertz transmittance and infrared reflectivity measurements were performed on selected lead zirconate crystals at T= 10 K. Fit of the spectra enabled us to obtain all three principal components of its anisotropic dielectric ...

BM - Fyzika pevných látek a magnetismus

  • 2014
  • Jx
  • Link
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