Tailoring photostriction via superlattices engineering
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866910550279061504 |
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| author | Dansou, Carmel Paillard, Charles Bellaiche, Laurent |
| author_facet | Dansou, Carmel Paillard, Charles Bellaiche, Laurent |
| contents | We report systematic first-principles investigation of light-induced mechanical deformations in monodomain (PbTiO$_{3}$)$_{n}$/(SrTiO$_{3}$)$_{n}$ superlattices ($n=1-5$). We reveal that photostriction in these heterostructures quantitatively and qualitatively depends on the chemical period $n$. Specifically, we show that by changing the chemical period, we can induce $\textit {positive}$ or $\textit {negative}$ photostriction. We also present a simple analytical model to account for the calculated deformations. Our findings indicate that superlattices architectures may be key to design novel optomechanical applications. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2408_00101 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Tailoring photostriction via superlattices engineering Dansou, Carmel Paillard, Charles Bellaiche, Laurent Materials Science Mesoscale and Nanoscale Physics We report systematic first-principles investigation of light-induced mechanical deformations in monodomain (PbTiO$_{3}$)$_{n}$/(SrTiO$_{3}$)$_{n}$ superlattices ($n=1-5$). We reveal that photostriction in these heterostructures quantitatively and qualitatively depends on the chemical period $n$. Specifically, we show that by changing the chemical period, we can induce $\textit {positive}$ or $\textit {negative}$ photostriction. We also present a simple analytical model to account for the calculated deformations. Our findings indicate that superlattices architectures may be key to design novel optomechanical applications. |
| title | Tailoring photostriction via superlattices engineering |
| topic | Materials Science Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2408.00101 |