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Universal Crossover between Efros-Shklovskii and Mott Variable-Range-Hopping Regimes.

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TLDR
A universal scaling function, describing the crossover between the Mott and the Efros-Shklovskii hopping regimes, is derived, using the percolation picture of transport in strongly localized systems.
Abstract
A universal scaling function, describing the crossover between the Mott and the Efros-Shklovskii hopping regimes, is derived, using the percolation picture of transport in strongly localized systems. This function is agrees very well with experimental data. Quantitative comparison with experiment allows for the possible determination of the role played by polarons in the transport.

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Journal ArticleDOI

Variable-range-hopping conduction processes in oxygen deficient polycrystalline ZnO films

TL;DR: In this paper, the electrical resistivities have been measured over a wide range of temperature from 300 K down to liquid-helium temperatures, and it was shown that below about 100 K, the variable-range-hopping (VRH) conduction processes govern the charge transport properties.
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Coil-in-coil carbon nanocoils: 11 gram-scale synthesis, single nanocoil electrical properties, and electrical contact improvement.

TL;DR: This study showed that the selective focused laser annealing technique is an effective route to improve the electrical contacts to the nanodevice of coil-in-coil carbon nanocoils.
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Amorphous organic molecule/polymer diodes and transistors—Comparison between predictions based on Gaussian or exponential density of states

TL;DR: In this paper, the role of the density of states in determining the performance of amorphous organic devices was examined, and the authors concluded that a real DOS should have the attributes found in Gaussian density-of-states.
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A useful Mott - Efros - Shklovskii resistivity crossover formulation for three-dimensional films

TL;DR: In this article, a simple 3D crossover expression for the resistance versus temperature behavior in highly insulating 3D films is presented, which extrapolates to the Mott variable-range hopping law at high temperatures, and at low temperatures to the Efros - Shklovskii variable range hopping law.
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