Results 221 to 230 of about 59,401 (264)
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The dielectric response of labradorite
Solid State Communications, 1985Abstract The mineral labradorite exhibits a dielectric response similar to that of the fast-ion conductor Na β-alumina and, at low temperatures, similar to that typical of glasses.
W.M. MacDonald, A.C. Anderson
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Dielectric response near an interface—significance of a local dielectric response
Thin Solid Films, 1981Abstract The interface between two isotropic media is often represented by a local refractive index which depends on the distance z to the surface. The reflection coefficient depends only on the overall dielectric response of the surface layers. Every anisotropy due to the surface can be accounted for by introducing a surface conductivity.
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Anomalous relaxation and dielectric response
Physical Review E, 2007It is shown that all the known experimental (quasi)stationary dielectric response functions of glassy media can be derived from a standard generalized Langevin description of overdamped torsional dipole oscillators in trapping potentials with random orientations under some minimal assumptions.
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Nonlinear dielectric response of polar liquids
The Journal of Chemical Physics, 2015The dielectric constant of a polar liquid in a strong electric field changes, in the lowest order, proportionally to the squared field magnitude. The proportionality coefficient (dielectric slope) is traditionally analyzed by mean-field models in terms of the saturation of alignment of individual dipoles as prescribed by the Langevin function.
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Static dielectric response of charged bosons
Physical Review B, 1992The dielectric function of a charged Bose gas is determined from the response to an imposed static sinusoidal electric field. Variational and diffusion quantum Monte Carlo simulations are used to calculate the ground-state properties of the system with trial wave functions containing a parameter dependent on the amplitude and wavelength of the ...
, Sugiyama, , Bowen, , Alder
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Metallic microwave dielectric response of polyacetylene
Physical Review B, 1995Using the dielectric constant and conductivity at microwave frequency, we study the differences between highly conducting polyacetylenes and standard metals. We report that the microwave dielectric constant at room temperature for heavily iodine-doped Tsukamoto polyacetylene films is negative and of record size.
Joo, J. +4 more
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Effective dielectric response of polydispersed composites
Physical Review B, 1990Generalisation du concept de la polarisabilite renormalisee, introduit dans une theorie de moyenne effective developpee recemment, au cas des composes polydisperses. On traite un ensemble d'inclusions spheriques homogenes et isotropes a distribution de taille continue.
, Barrera +3 more
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Static dielectric response of the electron gas
Physical Review B, 1994We determine the static dielectric function of the electron gas at selected densities by using variational and fixed-node diffusion quantum Monte Carlo to find the response to a sinusoidal electric field. The dielectric function is then calculated by relating the induced charge density to the change in ground-state energy as a function of the amplitude
, Bowen, , Sugiyama, , Alder
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Dielectric response of transformer insulation oils
2012 10th International Power & Energy Conference (IPEC), 2012Dielectric diagnosis with polarization and depolarization currents (PDC) which employs the dielectric response of system in time domain is applied to investigate differences between PDC patterns produced by two types of transformer insulating fluids, mineral and bio-degradable oil.
M. Shareghi +3 more
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Physica B+C, 1979
The thermally stimulated current (TSC) technique is quite useful for studying the dielectric properties of materials. In the present paper the theory of TSC for systems having a response function exp (−tτ)β with 0 < β ⩽ 1 is described. This non-exponential response function proposed by Williams et al.
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The thermally stimulated current (TSC) technique is quite useful for studying the dielectric properties of materials. In the present paper the theory of TSC for systems having a response function exp (−tτ)β with 0 < β ⩽ 1 is described. This non-exponential response function proposed by Williams et al.
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