Reconstruction of the ferroelectric domain structure morphology in BaTiO3 single crystals using Cerenkov-type second harmonic generation microscopy


Domain structure arising as a result of surface polishing in the bulk of barium titanate BaTiO3 single crystal was imaged by polarized optical microscopy and Cerenkov-type second harmonic generation (CSHG) microscopy, which allowed distinguishing between 90 degrees and 180 degrees domain walls. 3D-morphology of different domain patterns in the bulk was recovered using CSHG images. The domain structure represented the stack of the intermitting needlelike a-domains with charged domain walls rarely crossed by the zigzag domain patterns with 180 degrees walls. The used experimental technique can be used for understanding the domain kinetics in the multiaxial crystals.



subject category

Materials Science; Physics


Gimadeeva, LV; Alikin, DO; Nebogatikov, MS; Linker, EA; Kholkin, AL; Shur, VY

our authors


This research was made possible by RFBR (grant 20-32-90201) and the Ministry of Science and Higher Education of the Russian Federation (projects 075-15-2021-677 and FEUZ-2020-0054).

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