Journal ArticleDOI
Dielectric Properties of Ice and Solid D2O
Robert P. Auty,Robert H. Cole +1 more
TLDR
In this article, complex dielectric constants have been measured for ice from the melting point to −65°C and for solid D2O to −35°C, by a combination of bridge and transient methods.Abstract:
Complex dielectric constants have been measured for ice from the melting point to −65°C, and for solid D2O to −35°C, by a combination of bridge and transient methods. For both, the dispersion is described by the simple Debye formula, and the relaxation times τ by the simple rate expression τ = A exp(B/RT). For ice, A = 5.3×10−16 sec, B = 13.2 kcal/mole; and for solid D2O, A = 7.7×10−16 sec, B = 13.4 kcal/mole. The equilibrium dielectric constant for ice is 91.5 at 0°C and increases at lower temperatures; the values for solid D2O are only slightly smaller. Measures taken to minimize errors from voids in the sample and direct current conductance are discussed.read more
Citations
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Journal ArticleDOI
Geophysical exploration in polar areas with very low frequency phase variations
TL;DR: In this paper, the phase variations for mixed paths with homogeneous media are markedly different from those in a stratified media, and the recovery effect of these phase variations is discussed.
Journal ArticleDOI
Camphoric acid based ferroelectric hydrogen bonded liquid crystalline materials integration further dielectric relaxations and novel applications
M. L. N. Madhu Mohan,Kaushik Pal +1 more
TL;DR: In this paper, a sequence of hydrogen bond ferroelectric liquid crystals (HBFLC) derived from Camphoric acid and alkyloxy benzoic acids display a variety of mosogenic polymorphism with various smectic ordering like C*, X* and G*.
Explaining the dielectric properties of firn as a density- and conductivity mixed permittivity (DECOMP) for geophysical applications
TL;DR: In this paper, the authors present an example for numerical inversion of complex-valued dielectric mixing formulae for some known material properties, which is applicable to other composites as well.
Journal ArticleDOI
VLF fields of a horizontal dipole below the polar anisotropic ionosphere
G. Webber,I. Peden +1 more
TL;DR: In this article, a study of VLF fields excited by a horizontal dipole in the waveguide formed between the ice-covered ground and the anisotropic ionosphere of Antarctica is made.
Journal ArticleDOI
Equilibrium Structure of Polarized Ice
R. V. Babcock,R. L. Longini +1 more
TL;DR: In this article, the authors described the equilibrium state for pure ice containing parallel electric and polarization fields by giving the concentration profiles of the four principal classes of defect in hydrogen bonding, using the concept of a trace to keep strict track of interaction between the defect motions and the lattice polarizations.
References
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Journal ArticleDOI
The Dielectric Polarization of Polar Liquids
TL;DR: In this paper, an extension of the Onsager theory of dielectric polarization is presented, which is applied to liquid water under the assumption of tetrahedral coordination and directed bonds between neighboring molecules.
Journal ArticleDOI
A Wide Range Capacitance‐Conductance Bridge
Robert H. Cole,Paul M. Gross +1 more
TL;DR: In this paper, the authors describe a bridge for reasonably accurate measurement by direct balance of capacitance and conductance in the frequency range 50 c/sec. to 5 cm/sec., and over most of this range is essentially direct reading in the two admission components with negligible unbalance from lead effects or guard circuits of the unknown.
Journal ArticleDOI
A Calculation of the Static Dielectric Constant of Ice
TL;DR: In this article, a calculation of the static dielectric constant of ice using only simple molecular data and with well-defined assumptions as to the possibilities of molecular movement in the crystal is presented.
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