Journal ArticleDOI
Critical Behaviour of Conductivity and Dielectric Constant near the Metal-Non-Metal Transition Threshold
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TLDR
In this article, the metal-non-metal transition takes place when the volume fraction of the metallic phase approaches the percolation threshold, and it is shown that the static dielectric constant diverges near the threshold.Abstract:
A system consisting of randomly distributed metallic and dielectric regions is considered. The metal-non-metal transition takes place when the volume fraction of the metallic phase approaches the percolation threshold. It is shown that the static dielectric constant diverges near the threshold. Critical indexes are introduced which describe the behaviour of the conductivity and the dielectric constant near the threshold as functions of the volume fraction and frequency. The case of non-zero dc conductivity of dielectric regions is considered also. It is shown that all indexes describing the critical behaviour of complex conductivity can be expressed by two indexes which are known from computer and model experiments. The results of computer calculations of Webman et al. are analysed.read more
Citations
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Scaling theory of percolation clusters
TL;DR: In this article, the scaling theory of phase transition has been used to explain percolation through the cluster properties; it can also be used as an introduction to critical phenomena at other phase transitions for readers not familiar with scaling theory.
Journal ArticleDOI
Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond
TL;DR: In this article, the authors review recent developments in the physics of ultracold atomic and molecular gases in optical lattices and show how these systems may be employed as quantum simulators to answer some challenging open questions of condensed matter, and even high energy physics.
Journal ArticleDOI
Fundamentals, processes and applications of high-permittivity polymer–matrix composites
Zhi-Min Dang,Zhi-Min Dang,Zhi-Min Dang,Jinkai Yuan,Jun-Wei Zha,Tao Zhou,Shengtao Li,Guo-Hua Hu,Guo-Hua Hu +8 more
TL;DR: In this paper, the authors focus on the important role and challenges of high-k polymer-matrix composites (PMC) in new technologies and discuss potential applications of highk PMC.
Journal ArticleDOI
Flexible Nanodielectric Materials with High Permittivity for Power Energy Storage
TL;DR: This review first outlines the crucial issues in the nanodielectric field and then focuses on recent remarkable research developments in the fabrication of FNDMs with special constitutents, molecular structures, and microstructures.
Journal ArticleDOI
Electrical and thermal conductivity of polymers filled with metal powders
TL;DR: In this article, the electrical and thermal conductivity of systems based on epoxy resin (ER) and polyvinyl chloride (PVC) filled with metal powders have been studied.
References
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Journal ArticleDOI
Percolation and Conduction
TL;DR: In this article, an extension of percolation theory to treat transport is described, and a general expression for the conductance of such networks is derived, which relates to the spin-stiffness coefficient of dilute ferromagnet.
Journal ArticleDOI
Percolation Theory and Electrical Conductivity
TL;DR: In this article, the bulk conductivity of a sheet of colloidal graphite paper with holes randomly punched in it was investigated and the behavior of the conductivity was found to be quite different from that of the percolation probability.
Journal ArticleDOI
Numerical simulation of electrical conductivity in microscopically inhomogeneous materials
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Dielectric Anomaly and the Metal-Insulator Transition in n-Type Silicon
Journal ArticleDOI
Conductivity in the two-dimensional-site percolation problem
B. P. Watson,P. L. Leath +1 more
TL;DR: In this paper, the electrical conductivity of a 137-site simple-square screen mesh versus concentration of removed sites was measured and the new critical exponent was reported to be $t=1.12$ within an estimated critical region.
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