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Electrical Conductivity of Cryptocrystalline Forms of Silica

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Abstract

The electrical conductivity of natural samples of exogenous silicides has been studied. In the temperature range of 515−700 K, the conductivity increases from 1.1 × 10−7 to 1.3 × 10−6 S/cm, while the activation enthalpy of electrical transfer amounts to ΔHa = 0.48 ± 0.04 eV. Apparently, the electrical conductivity is caused by the migration of protons (according to the Grotthuss mechanism) in the aqueous solution present in capillary channels of silicides.

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Funding

This study was supported by the Ministry of Higher Education and Science of the Russian Federation within the state assignment for the Federal Scientific Research Centre “Crystallography and Photonics” of the Russian Academy of Sciences and the Prokhorov General Physics Institute of the Russian Academy of Sciences.

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Authors and Affiliations

  1. Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics”, Russian Academy of Sciences, 119333, Moscow, Russia

    N. I. Sorokin, R. V. Gaynutdinov & E. V. Chernova

  2. Prokhorov General Physics Institute, Russian Academy of Sciences, 119991, Moscow, Russia

    V. V. Voronov & P. P. Fedorov

Authors
  1. N. I. Sorokin
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  2. R. V. Gaynutdinov
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  3. V. V. Voronov
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  4. E. V. Chernova
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  5. P. P. Fedorov
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Corresponding author

Correspondence to P. P. Fedorov.

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Translated by Yu. Sin’kov

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Sorokin, N.I., Gaynutdinov, R.V., Voronov, V.V. et al. Electrical Conductivity of Cryptocrystalline Forms of Silica. Crystallogr. Rep. 66, 126–129 (2021). https://doi.org/10.1134/S1063774521010181

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  • DOI: https://doi.org/10.1134/S1063774521010181

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