Domain evolution in BiFeO3 epitaxial nanoisland array via post-annealing
We describe the impact of post-annealing on ferroelectric-domain structures in arrays of BiFeO3 (BFO) epitaxial nanoislands, which exhibit a domain evolution from an initial 71° stripe/vortex domains to center-convergent topological domains. These results suggest that the increase and redistribution of charged defects, e.g., oxygen vacancies, in BFO nanoislands play a crucial role in driving the formation of center-type domain structures. The observation of defect-driven domain evolution in BFO nanoislands provides a path for further exploring their formation mechanism, topological properties, novel functionalities, and potential applications.
Authors
- Jun‐Ming Liu (ORCID: https://orcid.org/0000-0001-8988-8429)
- Xingsen Gao (ORCID: https://orcid.org/0000-0002-2725-0785)
- Jiyan Dai (ORCID: https://orcid.org/0000-0002-7720-8032)
- Jun Jin (ORCID: https://orcid.org/0009-0004-5869-8330)
- Huaichun Zhou (ORCID: https://orcid.org/0000-0003-4900-6609)
- Xingchen Zhang (ORCID: https://orcid.org/0009-0004-9650-3434)
- Guo Tian (ORCID: https://orcid.org/0000-0001-9770-2241)
- Gui Wang (ORCID: https://orcid.org/0009-0008-0771-1506)
Institutions
- Hong Kong Polytechnic University (HK)
- South China Normal University (CN)
- Collaborative Innovation Center of Advanced Microstructures (CN)
- Nanjing University (CN)
Publication Details
- Journal
- Journal of Applied Physics
- Published
- 2024-10-18
- DOI
- https://doi.org/10.1063/5.0237974
- Primary Topic
- Multiferroics and related materials
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Basic and Applied Basic Research Foundation of Guangdong Province