Vortices and antivortices in antiferroelectric PbZrO3
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arXiv
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| Autores principales: | , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866909485379878912 |
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| author | Liu, Ying Zhang, Huazhang Shapovalov, Konstantin Niu, Ranming Cairney, Julie M. Liao, Xiaozhou Roleder, Krystian Majchrowski, Andrzej Arbiol, Jordi Ghosez, Philippe Catalan, Gustau |
| author_facet | Liu, Ying Zhang, Huazhang Shapovalov, Konstantin Niu, Ranming Cairney, Julie M. Liao, Xiaozhou Roleder, Krystian Majchrowski, Andrzej Arbiol, Jordi Ghosez, Philippe Catalan, Gustau |
| contents | Although ferroelectric materials are characterised by their parallel arrangement of electric dipoles, in the right boundary conditions these dipoles can reorganize themselves into vortices, antivortices and other non-trivial topological structures. By contrast, little is known about how (or whether) antiferroelectrics, which are materials showing an antiparallel arrangement of electric dipoles, can exhibit vortices or antivortices. In this study, using advanced aberration-corrected scanning transmission electron microscopy, we uncover the existence of atomic-scale (anti)vorticity in ferroelastic domain walls of the archetypal antiferroelectric phase of PbZrO3. The finding is supported, and its underlying physics is explained, using both second-principles simulations based on a deep-learning interatomic potential, and continuum field modelling. This discovery expands the field of chiral topologies into antiferroelectrics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_05852 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Vortices and antivortices in antiferroelectric PbZrO3 Liu, Ying Zhang, Huazhang Shapovalov, Konstantin Niu, Ranming Cairney, Julie M. Liao, Xiaozhou Roleder, Krystian Majchrowski, Andrzej Arbiol, Jordi Ghosez, Philippe Catalan, Gustau Materials Science Although ferroelectric materials are characterised by their parallel arrangement of electric dipoles, in the right boundary conditions these dipoles can reorganize themselves into vortices, antivortices and other non-trivial topological structures. By contrast, little is known about how (or whether) antiferroelectrics, which are materials showing an antiparallel arrangement of electric dipoles, can exhibit vortices or antivortices. In this study, using advanced aberration-corrected scanning transmission electron microscopy, we uncover the existence of atomic-scale (anti)vorticity in ferroelastic domain walls of the archetypal antiferroelectric phase of PbZrO3. The finding is supported, and its underlying physics is explained, using both second-principles simulations based on a deep-learning interatomic potential, and continuum field modelling. This discovery expands the field of chiral topologies into antiferroelectrics. |
| title | Vortices and antivortices in antiferroelectric PbZrO3 |
| topic | Materials Science |
| url | https://arxiv.org/abs/2502.05852 |