期刊
FERROELECTRICS
卷 576, 期 1, 页码 75-84出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/00150193.2021.1888263
关键词
Domain structure; polarization reversal; strontium-barium niobate; relaxor ferroelectric; Č erenkov-type second-harmonic generation microscopy
资金
- Russian Science Foundation [19-72-00008]
- Russian Science Foundation [19-72-00008] Funding Source: Russian Science Foundation
The evolution of domain structure during polarization reversal in single crystals of a relaxor ferroelectric strontium-barium niobate doped with Ni2O3 was investigated. Three types of domains were identified, including domains with a broad boundary, cylindrical domains, and conical domains. Three stages of domain shape evolution were distinguished in the domain with a broad boundary, and the velocities of wall motion and domain growth were measured for all types of domains.
The evolution of the domain structure during polarization reversal in single crystals of a relaxor ferroelectric strontium-barium niobate (Sr0.61Ba0.39Nb2O6) doped with 0.05 wt.% Ni2O3 was investigated. The domains in the crystal bulk were imaged by Cerenkov-type second harmonic generation microscopy. Three types of domains were revealed: (1) domains with a broad boundary, (2) cylindrical domains, and (3) conical domains. Three stages of the domain shape evolution were distinguished in the domain with a broad boundary. The velocities of the sideways wall motion and forward domain growth were measured for all the domain types.
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