期刊
JOURNAL OF APPLIED PHYSICS
卷 130, 期 16, 页码 -出版社
AIP Publishing
DOI: 10.1063/5.0064291
关键词
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资金
- Ministry of Education, Culture, Sports, Science, and Technology, Japan [17H02746, 19H02463]
- Grants-in-Aid for Scientific Research [19H02463, 17H02746] Funding Source: KAKEN
This study used in situ biasing high-voltage transmission electron microscopy to study ferroelectric domain dynamics in Pb(Mg1/3Nb2/3)O-3-0.3PbTiO(3) single crystals. Time-resolved recording of polarization switching on a 2.5 ms time scale revealed reversible response of micrometer-scale domains to an electric field of 1 kV/mm. Analysis on smaller sized domains showed that switching initiated at a corner of a domain and proceeded rapidly inward, with a maximum switching rate of 6-8 mu m/s.
Ferroelectric domain dynamics in Pb(Mg1/3Nb2/3)O-3-0.3PbTiO(3) single crystals have been studied by in situ biasing high-voltage transmission electron microscopy with a direct electron detection camera. We have achieved time-resolved recording of polarization switching in real space on a 2.5 ms time scale. The reversible response of micrometer-scale domains was observed by applying an electric field of 1 kV/mm. Detailed analyses on smaller sized domains 100-500 nm in size revealed that the domain switching initiated at a corner of a rectangular domain and propagated inward rapidly. The switching proceeded within 60 ms and the maximum switching rate, as fast as 6-8 mu m/s, was observed. The domain switching kinetics was classified as two-dimensional nucleation and growth mode based on the Kolmogolov-Avrami-Ishibashi model.
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