Domain formation in heavily doped LiNbO3:Mg crystals exposed to an electron beam

This paper presents a detailed study of domain structures produced by an electron beam on the Z -cut surface of LiNbO 3 :Mg crystals. The doping level and procedure have been shown to influence the shape and number of domains formed in the electron charge deposition zone on the crystal surface. Cont...

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Bibliographic Details
Published inInorganic materials Vol. 51; no. 6; pp. 607 - 612
Main Authors Kokhanchik, L. S., Emelin, E. V., Palatnikov, M. N.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.06.2015
Subjects
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Materials Science
Electron Beam
Lithium Niobate Crystal
Lithium Niobate
Small Polaron
Domain Formation
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Summary:This paper presents a detailed study of domain structures produced by an electron beam on the Z -cut surface of LiNbO 3 :Mg crystals. The doping level and procedure have been shown to influence the shape and number of domains formed in the electron charge deposition zone on the crystal surface. Controlled formation of domains and domain structures through electron beam writing has only been achieved in samples with subthreshold magnesium concentration and in LiNbO 3 :Mg,Fe samples. The experimental results obtained are discussed in terms of differences in the defect structure and mechanisms of electronic conduction of the samples.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168515060084