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265 344 (0,219s)

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Effective dielectric function in high-permittivity ceramics and films

Effective dielectric function in granular materials (ceramics and polycrystalline films) is discussed in terms of the recently developed generalized brick-wall model for arbitrary particle shape and size......

BM - Fyzika pevných látek a magnetismus

  • 2005
  • Jx
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 (ferroelect...

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

  • 2024
  • C
  • Link
Result

Broadband dielectric spectroscopy of standard and core-shell BaTiO3-NiO ceramic composites compared to the BaTiO3 ceramics

range. Using the dielectric functions of the BaTiO3 ceramics and NiO crystal, we modelled the effective dielectric functions of the composite using three models based effective dielectric

BM - Fyzika pevných látek a magnetismus

  • 2016
  • Jx
  • 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 im...

Electrical and electronic engineering

  • 2018
  • Jimp
  • Link
Result

Dielectric grain-size effect in high-permittivity ceramics

On the basis of existing experiments, the grain-size effect on the permittivity and dielectric function in the case of ferroelectric and relaxor ferroelectric dense single-phase ceramics is reviewed and critically discussed...

BM - Fyzika pevných látek a magnetismus

  • 2010
  • Jx
Result

Broadening of dielectric response and sum rule conservation

the broadening of the dielectric function and transition strength function conserve this sum rule, whereas the broadening of the transition probability function (joint density rectangular models. It is shown that ...

BM - Fyzika pevných látek a magnetismus

  • 2014
  • Jx
  • Link
Result

Effective dielectric function of BaTiO3-NiO composites

microstructure. Quantitative broadband dielectric spectroscopy up to the infrared range at 10 dielectric spectra revealing all three ferroelectric phase transitions were compared with modelled spectra using three different models b...

BM - Fyzika pevných látek a magnetismus

  • 2016
  • D
  • Link
Result

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

The broadening of a sharp (unbroadened) dielectric function is a fruitful parameterization of such effects. The unbroadened function is often taken as a piecewise model of a complex dielectric function...

Optics (including laser optics and quantum optics)

  • 2019
  • Jimp
  • Link
Result

Excitonic effects at the temperature-dependent direct bandgap of Ge

The temperature dependence of the complex dielectric function ????1+????????2 at temperatures between 10 and 710 K. Second derivatives of the dielectric function that incorporates excitonic effects using t...

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

  • 2022
  • Jimp
  • Link
Result

Dynamic ferroelectric-like softening due to the conduction in disordered and inhomogeneous systems: Giant permittivity phenomena

Dynamic response of giant permittivity is discussed for disordered conductors and conductor-dielectric composites near the electrical percolation threshold......

BM - Fyzika pevných látek a magnetismus

  • 2012
  • Jx
  • Link
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