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Zhurnal Tekhnicheskoi Fiziki, 2020, Volume 90, Issue 8, Pages 1296–1302
DOI: https://doi.org/10.21883/JTF.2020.08.49539.69-18
(Mi jtf5230)
 

This article is cited in 1 scientific paper (total in 1 paper)

Solids

Mechanisms of variation of the unipolarity during thermal processing of heavily doped LiNbO$_{3}$:ZnO crystals

M. N. Palatnikov, V. A. Sandler, N. V. Sidorov, O. V. Makarova

Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials Kola Science Centre of the Russian Academy of Sciences
Full-text PDF (157 kB) Citations (1)
Abstract: The phenomenological mechanisms for increasing the unipolarity under thermal processing in the short-circuiting conditions for heavily doped LiNbO$_{3}$:ZnO crystals are analyzed by comparing with the temperature behavior of nominally pure LiNbO$_{3}$:ZnO crystals with the congruent composition. It is shown that an increase in the unipolarity and, hence, the disappearance of the domain structure in heavily doped LiNbO$_{3}$:ZnO crystals is initiated by thermal decomposition of charged polar clusters stabilizing domain walls. The decomposition of polar clusters is accompanied with an abrupt jumpwise injection of extra charge carriers (Li+ cations). As a result, the conductivity of LiNbO$_{3}$:ZnO crystals at a temperature above 800 K is an order of magnitude higher than that of nominally pure LiNbO$_{3}$ crystals with the congruent composition. This leads to the degradation of the domain structure in LiNbO$_{3}$:ZnO crystals in contrast to LiNbO$_{3}$ crystals with the congruent composition.
Keywords: crystals, lithium niobate, doping, static piezoelectric effect, unipolarity, domains, polar clusters.
Received: 13.02.2018
Revised: 21.01.2020
Accepted: 04.02.2020
English version:
Technical Physics, 2020, Volume 65, Issue 8
DOI: https://doi.org/10.1134/S1063784220080149
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: M. N. Palatnikov, V. A. Sandler, N. V. Sidorov, O. V. Makarova, “Mechanisms of variation of the unipolarity during thermal processing of heavily doped LiNbO$_{3}$:ZnO crystals”, Zhurnal Tekhnicheskoi Fiziki, 90:8 (2020), 1296–1302
Citation in format AMSBIB
\Bibitem{PalSanSid20}
\by M.~N.~Palatnikov, V.~A.~Sandler, N.~V.~Sidorov, O.~V.~Makarova
\paper Mechanisms of variation of the unipolarity during thermal processing of heavily doped LiNbO$_{3}$:ZnO crystals
\jour Zhurnal Tekhnicheskoi Fiziki
\yr 2020
\vol 90
\issue 8
\pages 1296--1302
\mathnet{http://mi.mathnet.ru/jtf5230}
\crossref{https://doi.org/10.21883/JTF.2020.08.49539.69-18}
\elib{https://elibrary.ru/item.asp?id=43870254}
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  • https://www.mathnet.ru/eng/jtf/v90/i8/p1296
  • This publication is cited in the following 1 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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