Photoinduced phase transitions and lattice deformation in 2D NbOX$_{2}$ (X=Cl, Br, I)
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arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866908748028575744 |
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| author | Dansou, Carmel Paillard, Charles Bellaiche, Laurent |
| author_facet | Dansou, Carmel Paillard, Charles Bellaiche, Laurent |
| contents | We present a comprehensive investigation of light-induced phase transitions and strain in two-dimensional NbOX$_{2}$ (X = Cl, Br, I) using first-principles calculations. In particular, we identify a light-induced ferroelectric-to-paraelectric phase transition in these 2D systems. Furthermore, we demonstrate the possibility of inducing an antiferroelectric-to-paraelectric transition under illumination. Additionally, we find that these 2D systems exhibit significant photostrictive behavior, adding a new functionality to their already notable optical properties. The ability to control and manipulate ferroelectric order in these nanoscale materials through external stimuli, such as light, holds considerable promise for the development of next-generation electronic and optoelectronic devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_16787 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Photoinduced phase transitions and lattice deformation in 2D NbOX$_{2}$ (X=Cl, Br, I) Dansou, Carmel Paillard, Charles Bellaiche, Laurent Materials Science Mesoscale and Nanoscale Physics We present a comprehensive investigation of light-induced phase transitions and strain in two-dimensional NbOX$_{2}$ (X = Cl, Br, I) using first-principles calculations. In particular, we identify a light-induced ferroelectric-to-paraelectric phase transition in these 2D systems. Furthermore, we demonstrate the possibility of inducing an antiferroelectric-to-paraelectric transition under illumination. Additionally, we find that these 2D systems exhibit significant photostrictive behavior, adding a new functionality to their already notable optical properties. The ability to control and manipulate ferroelectric order in these nanoscale materials through external stimuli, such as light, holds considerable promise for the development of next-generation electronic and optoelectronic devices. |
| title | Photoinduced phase transitions and lattice deformation in 2D NbOX$_{2}$ (X=Cl, Br, I) |
| topic | Materials Science Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2503.16787 |