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Low-temperature electrical conductivity of congruent lithium niobate crystals

  • Magnetism and Ferroelectricity
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Abstract

The electrical conductivity of lithium niobate crystals was investigated at temperatures between 80 and 450 K as a function of the oxidation-reduction annealing conditions. The results are interpreted in terms of polaron electrical conductivity at room temperature and above. A reduction in the measurement temperature leads to “freezing out” of small-radius polarons, and hopping of Heitler-London bipolarons via unfilled NbLi sites becomes the main mechanism responsible for the electrical conductivity.

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Authors and Affiliations

  1. Kazan Physicotechnical Institute, Russian Academy of Sciences, 420029, Kazan, Russia

    I. Sh. Akhmadullin, V. A. Golenishchev-Kutuzov, S. A. Migachev & S. P. Mironov

Authors
  1. I. Sh. Akhmadullin
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  2. V. A. Golenishchev-Kutuzov
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  3. S. A. Migachev
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  4. S. P. Mironov
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Additional information

Fiz. Tverd. Tela (St. Petersburg) 40, 1307–1309 (July 1998)

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Akhmadullin, I.S., Golenishchev-Kutuzov, V.A., Migachev, S.A. et al. Low-temperature electrical conductivity of congruent lithium niobate crystals. Phys. Solid State 40, 1190–1192 (1998). https://doi.org/10.1134/1.1130517

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  • DOI: https://doi.org/10.1134/1.1130517

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