Local Polarization Reversal by Ion Beam Irradiation in SBN Single Crystals Covered by Dielectric Layer
authors Shikhova, VA; Chezganov, DS; Nuraeva, AS; Nebogatikov, MS; Greshnyakov, ED; Pashnina, EA; Anikin, VA; Turygin, AP; Kholkin, AL; Ivleva, LI; Shur, VY
nationality International
journal IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL
author keywords Radiation effects; Switches; Crystals; Resists; Shape; Photonic crystals; Microscopy; Confocal Raman microscopy (CRM); Cerenkov-type second-harmonic generation microscopy (CSHGM); domain structure; ion beam irradiation; local switching; piezoresponse force microscopy (PFM); relaxor ferroelectrics; strontium barium niobate
keywords BARIUM NIOBATE CRYSTALS; DOMAIN-STRUCTURE; LINBO3; VISUALIZATION; SPECTROSCOPY; PATTERNS; LITAO3; FIELD
abstract Formation of the domain structure by ion beam irradiation was studied in thermally depolarized Ce-doped strontium barium niobate single crystals covered by a dielectric layer. Three types of irradiation regimes were used: dot exposure, stripe exposure, and line exposure. The dependences of the domain size and depth on the irradiated dose were measured. The circular shape of the isolated domains with partially switched broad domain boundary was obtained. Isotropic domain growth was attributed to the step generation at the wall by merging with the residual nanodomains that appeared after thermal depolarization. The obtained linear dose dependence of the switched area was attributed to the screening of the depolarization field by the injected charge. The shape distortion of the domains growing in the neighborhood with already created ones was attributed to the electrostatic interaction of the approaching charged domain walls. The obtained results can be applied for the creation of precise domain patterns with arbitrary orientation and shape to produce nonlinear optical devices with improved characteristics, including electrically tunable diffractive optical elements.
publisher IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
issn 0885-3010
isbn 1525-8955
year published 2021
volume 68
issue 8
beginning page 2824
ending page 2831
digital object identifier (doi) 10.1109/TUFFC.2021.3078447
web of science category 8
subject category Acoustics; Engineering, Electrical & Electronic
unique article identifier WOS:000678338800023
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journal impact factor 2.812
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