Results 231 to 240 of about 59,401 (264)

Dielectric response in semiconductors

Journal of Physics C: Solid State Physics, 1974
The dielectric matrix for a semiconductor is discussed in the long-wavelength limit as a function of energy. The off-diagonal elements are related to the properties of the Jones zone while the diagonal part corresponds to a simple interpolation formula and has the standard zero-energy long-wavelength limit.
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Strained silicon: A dielectric-response calculation

Physical Review B, 1992
Strain-induced birefringence is calculated with crystalline silicon for pressure applied along the [001] and [111] directions of the crystal. Results for the dielectric function and its change under hydrostatic strain are also given. The results are calculated for photon energies in the range 0--3.25 eV, i.e., below the direct band gap.
, Levine, , Zhong, , Wei, , Allan, , Wilkins   +4 more
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Dielectric response of some biological tissues

Bioelectromagnetics, 2001
AbstractThe dielectric properties of two freshly excised mice tissue samples (kidney, skeletal muscle) and also freshly excised Ehrlich solid tumor were measured in the frequency range from 20 Hz to 100 kHz using RLC bridges. The data were fitted to a summation of multiple Cole–Cole dispersion and also to the constant power law which is related ...
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Effective dielectric response of nonlinear composites

Physical Review B, 1993
A perturbative approach is developed to compute the local field for the case of a nonlinear inclusion embedded in a nonlinear host. The result is applied to nonlinear composites. General formulas for calculating the effective nonlinear susceptibility up to the case of fifth-order nonlinearity are given.
, Yu, , Hui, , Stroud
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Nonlinear Dielectric Response of Plastic Crystals

2018
This article summarizes ongoing experimental efforts on nonlinear dielectric spectroscopy on plastic crystals. In plastic crystals, the relevant dipolar orientational degrees of freedom are fixed on a crystalline lattice with perfect translational symmetry.
Lunkenheimer, Peter, Michl, Marion, Loidl, Alois   +2 more
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Optical response of a nonlinear dielectric film

Physical Review B, 1987
We present a theoretical discussion of the optical reflectivity and transmissivity of a dielectric slab of arbitrary thickness, with index of refraction that contains a term proportional to the intensity of the optical wave in the slab. An exact solution is found for the problem, in terms of a single parameter whose value is determined through a ...
, Chen, , Mills
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Mechanical and Dielectric Response

1996
In the large majority of present day uses of polymeric materials, the focus is on their mechanical performance. Properties are of a peculiar nature since polymer melts are different from low molar mass liquids and polymer solids differ from conventional crystalline solids.
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The Dielectric Response Functions

2007
The dielectric function and the functions directly related to it are fundamental in solid-state spectroscopy. Their derivation is based on a very general description of the reaction of a system to an external force. As long as the reaction is linear, the response is obtained according to a linear response model and the relations describing the ...
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The Dielectric and Conductivity Response of Sedimentary Rocks

SPE Annual Technical Conference and Exhibition, 1980
ABSTRACT We calculate the complex dielectric constant of brine saturated sedimentary rocks using several different models. A calculation using a self-consistent scheme gives Archie’s law in the d.c. limit. The cementation exponent, m, is shown to depend on grain shape, in agreement with experiments.
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Dielectric response of a ferroelectric nematic liquid crystalline phase in thin cells

Liquid Crystals, 2023
Damian Pociecha, Nataša Vaupotič, Joanna Matraszek   +2 more
exaly