Spin defects in hexagonal boron nitride as two-dimensional strain sensors
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arXiv
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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866908799444451328 |
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| author | Mu, Z. Zhang, Z. Fraunié, J. Robert, C. Seine, G. Gil, B. Cassabois, G. Jacques, V. |
| author_facet | Mu, Z. Zhang, Z. Fraunié, J. Robert, C. Seine, G. Gil, B. Cassabois, G. Jacques, V. |
| contents | Lattice deformation is a powerful way to engineer the properties of two-dimensional (2D) materials, making their precise measurement an important challenge for both fundamental science and technological applications. Here, we demonstrate that boron-vacancy (V$_\text{B}^-$) color centers in hexagonal boron nitride (hBN) enable quantitative strain sensing with sub-micrometer spatial resolution. Using this approach, we precisely quantify the strain-induced shift of the E$_{\rm 2g}$ Raman mode in a multilayer hBN flake under uniaxial stress, establishing V$_\text{B}^-$ centers as a new tool for strain metrology in van der Waals heterostructures. Beyond strain sensing, our work also highlights the unique multimodal sensing functionalities offered by V$_\text{B}^-$ centers, which will be valuable for future studies of strain-engineered 2D materials. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_18745 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Spin defects in hexagonal boron nitride as two-dimensional strain sensors Mu, Z. Zhang, Z. Fraunié, J. Robert, C. Seine, G. Gil, B. Cassabois, G. Jacques, V. Materials Science Lattice deformation is a powerful way to engineer the properties of two-dimensional (2D) materials, making their precise measurement an important challenge for both fundamental science and technological applications. Here, we demonstrate that boron-vacancy (V$_\text{B}^-$) color centers in hexagonal boron nitride (hBN) enable quantitative strain sensing with sub-micrometer spatial resolution. Using this approach, we precisely quantify the strain-induced shift of the E$_{\rm 2g}$ Raman mode in a multilayer hBN flake under uniaxial stress, establishing V$_\text{B}^-$ centers as a new tool for strain metrology in van der Waals heterostructures. Beyond strain sensing, our work also highlights the unique multimodal sensing functionalities offered by V$_\text{B}^-$ centers, which will be valuable for future studies of strain-engineered 2D materials. |
| title | Spin defects in hexagonal boron nitride as two-dimensional strain sensors |
| topic | Materials Science |
| url | https://arxiv.org/abs/2509.18745 |