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Electrical properties of LiNbO3 crystals reduced in a hydrogen atmosphere |
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| Authors: | A V Yatsenko S V Yevdokimov A S Pritulenko D Yu Sugak I M Solskii |
| Institution: | 1. Taurida National Vernadsky University, Akademika Vernadskogo 4, Simferopol, Crimean Autonomous Republic, 95007, Ukraine 2. Lviv Polytechnic National University, ul. Bandery 12, Lviv, 79013, Ukraine 3. Scientific Research Company ??Carat,??, ul. Stryiskaya 202, Lviv, 79031, Ukraine |
| Abstract: | The temperature dependence of the electrical conductivity and pyroelectric coefficient of lithium niobate crystals reduced in a hydrogen atmosphere has been studied. It has been established that the activation energy of dark electrical conduction in these crystals in the temperature range 288?C350 K differs from the corresponding values for crystals reduced in vacuum and is equal to 0.68 ± 0.02 eV. It has been shown that the annealing of LiNbO3 crystals in a hydrogen atmosphere hardly affects their pyroelectric properties. The mechanism of electrical conduction of LiNbO3 crystals reduced in a hydrogen-containing atmosphere has been discussed. |
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