@article{0be9c0057dfe4c119618b9fc72a9b7f3,
title = "Dislocation-induced large local polarization inhomogeneity of ferroelectric materials",
abstract = "Dislocations in ferroelectrics play important roles in ferroelectricity, piezoelectricity, and dielectricity. However, the intrinsic charge-lattice coupling mechanism in ferroelectric crystals containing dislocations is still not well understood. Here, we report a large local polarization inhomogeneity of ~100 μCcm−2 induced by a single a[001] dislocation in the PbZr0.2Ti0.8O3/SrTiO3 film/substrate heterostructure, the tensile region (~120 μCcm−2) and the compressive strain region (~21 μCcm−2) around the dislocation forms a butterfly-like area. This study reveals the dramatic effects of dislocations on local polarization and provides a strategy to manipulate the polarization magnitude and orientation of local polarization by defect engineering.",
author = "Ning Li and Ruixue Zhu and Xiaoxing Cheng and Liu, {Heng Jui} and Zhangyuan Zhang and Huang, {Yen Lin} and Chu, {Ying Hao} and Chen, {Long Qing} and Yuichi Ikuhara and Peng Gao",
note = "Funding Information: P.G. acknowledges the support from the National Basic Research Program of China (2016YFA0300804), the National Natural Science Foundation of China (51672007, 11974023), and the Key Area R&D Program of Guangdong Province (2018B010109009). The Key R&D Program of Guangdong Province (2018B030327001), the National Equipment Program of China (ZDYZ2015-1), and the “2011 Program” of Peking-Tsinghua-IOP Collaborative Innovation Centre for Quantum Matter. X.X.C. and L.-Q.C were supported by the Computational Materials Sciences Program funded by the US Department of Energy, Office of Science, Basic Energy Sciences, under Award Number DE-SC0020145. H.-J.L. and Y.-H.C. were supported by the Ministry of Science and Technology, R.O.C. (MOST 103-2119-M-009-003-MY3), and the Centre for Interdisciplinary Science of National Chiao Tung University. Part of this study was supported by a Grant-in-Aid for Specially Promoted Research (Grant No. JP17H06094) and a Grant-in-Aid for Scientific Research on Innovative Areas “Nano Informatics” from the Japan Society for the Promotion of Science (JSPS), a Grant-in-Aid for Scientific Research on Innovative Areas “Nano Informatics” (Grant No. 25106003) from JSPS, and the “Nanotechnology Platform” (Project No. 12024046) from the Ministry of Education, Culture, Sports, Science and Technology in Japan (MEXT). Publisher Copyright: {\textcopyright} 2020 Acta Materialia Inc.",
year = "2021",
month = mar,
day = "15",
doi = "10.1016/j.scriptamat.2020.11.009",
language = "English (US)",
volume = "194",
journal = "Scripta Materialia",
issn = "1359-6462",
publisher = "Elsevier Limited",
}