Atomic-scale study of electric dipoles near charged and uncharged domain walls in ferroelectric films
Nature Materials, ISSN: 1476-4660, Vol: 7, Issue: 1, Page: 57-61
2008
- 468Citations
- 418Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Metrics Details
- Citations468
- Citation Indexes468
- 468
- CrossRef398
- Captures418
- Readers418
- 418
Article Description
Ferroelectrics are materials exhibiting spontaneous electric polarization due to dipoles formed by displacements of charged ions inside the crystal unit cell. Their exceptional properties are exploited in a variety of microelectronic applications. As ferroelectricity is strongly influenced by surfaces, interfaces and domain boundaries, there is great interest in exploring how the local atomic structure affects the electric properties. Here, using the negative spherical-aberration imaging technique in an aberration-corrected transmission electron microscope, we investigate the cation-oxygen dipoles near 180 domain walls in epitaxial PbZr 0.2 Ti 0.8 O 3 thin films on the atomic scale. The width and dipole distortion across a transversal wall and a longitudinal wall are measured, and on this basis the local polarization is calculated. For the first time, a large difference in atomic details between charged and uncharged domain walls is reported. © 2008 Nature Publishing Group.
Bibliographic Details
Springer Science and Business Media LLC
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