3D polarization texture of a symmetric 4-fold flux closure domain in strained ferroelectric PbTiO3 films
文献类型：期刊论文
| 作者 | Tang, Y. L. ; Zhu, Y. L. ; Hong, Z. J. ; Eliseev, E. A. ; Morozovska, A. N. ; Wang, Y. J. ; Liu, Y. ; Xu, Y. B. ; Wu, B. ; Chen, L. Q. ; Pennycook, S. J. ; Ma, X. L. |
| 刊名 | JOURNAL OF MATERIALS RESEARCH
 |
| 出版日期 | 2017-03-01 |
| 卷号 | 32期号:5页码:957-967 |
| ISSN号 | 0884-2914 |
| 通讯作者 | Ma, XL (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China. |
| 中文摘要 | Although the strong coupling of polarization to spontaneous strain in ferroelectrics would impart a flux-closure with severe disclination strains, recent studies have successfully stabilized such a domain via a nano-scaled multi-layer growth. Nonetheless, the detailed distributions of polarizations in three-dimensions (3D) and how the strains inside a flux closure affect the structures of domain walls are still less understood. Here we report a 3D polarization texture of a 4-fold flux closure domain identified in tensile strained ferroelectric PbTiO3/SrTiO3 multilayer films. Ferroelectric displacement analysis based on aberration-corrected scanning transmission electron microscopic imaging reveals highly inhomogeneous strains with strain gradient above 10(7)/m. These giant disclination strains significantly broaden the 90 degrees domain walls, while the flexoelectric coupling at 180 degrees domain wall is less affected. The present observations are helpful for understanding the basics of topological dipole textures and indicate novel applications of ferroelectrics through engineering strains. |
| 学科主题 | Materials Science, Multidisciplinary |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [51231007, 51571197, 51501194, 51521091]; National Basic Research Program of China [2014CB921002]; IMR SYNL-T. S. Ke Research Fellowship and the Youth Innovation Promotion Association CAS [2016177]; National Academy of Science of the Ukraine; US National Science Foundation under NSF [DMR1210588, DMR-1420620]; U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-FG02-07ER46417] |
| 语种 | 英语 |
| 公开日期 | 2017-08-17 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/78247]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Tang, Y. L.,Zhu, Y. L.,Hong, Z. J.,et al. 3D polarization texture of a symmetric 4-fold flux closure domain in strained ferroelectric PbTiO3 films[J]. JOURNAL OF MATERIALS RESEARCH,2017,32(5):957-967. |
| APA | Tang, Y. L..,Zhu, Y. L..,Hong, Z. J..,Eliseev, E. A..,Morozovska, A. N..,...&Ma, X. L..(2017).3D polarization texture of a symmetric 4-fold flux closure domain in strained ferroelectric PbTiO3 films.JOURNAL OF MATERIALS RESEARCH,32(5),957-967. |
| MLA | Tang, Y. L.,et al."3D polarization texture of a symmetric 4-fold flux closure domain in strained ferroelectric PbTiO3 films".JOURNAL OF MATERIALS RESEARCH 32.5(2017):957-967. |
入库方式： OAI收割
来源：金属研究所
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