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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2018
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/1808.10611 |
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| _version_ | 1866910939084750848 |
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| author | Arı, Ozan Polat, Nahit Fırat, Volkan Çakır, Özgür Ates, Serkan |
| author_facet | Arı, Ozan Polat, Nahit Fırat, Volkan Çakır, Özgür Ates, Serkan |
| contents | We investigate temperature-dependent spectral properties of a single defect in hexagonal boron nitride (hBN). We observe a sharp zero-phonon line (ZPL) emission accompanied by Stokes and anti-Stokes optical phonon sidebands assisted by the Raman active low-energy ($\approx~6.5$ meV) interlayer shear mode of hBN. Spectral lineshape around the ZPL is measured down to 78 K, at which the linewidth of the ZPL is measured as 172 $μ$eV. By employing a quadratic electron-phonon interaction, the temperature-dependent broadening and the lineshift of the ZPL are found to follow $T+T^5$ and $T+T^3$ temperature dependence, respectively. Furthermore, the temperature-dependent lineshape around the ZPL is modeled with a linear electron-phonon coupling theory, which results in the Debye-Waller factor of the ZPL emission as 0.59. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1808_10611 |
| institution | arXiv |
| publishDate | 2018 |
| record_format | arxiv |
| spellingShingle | The effect of electron-phonon interactions on the spectral properties of single defects in hexagonal boron nitride Arı, Ozan Polat, Nahit Fırat, Volkan Çakır, Özgür Ates, Serkan Mesoscale and Nanoscale Physics We investigate temperature-dependent spectral properties of a single defect in hexagonal boron nitride (hBN). We observe a sharp zero-phonon line (ZPL) emission accompanied by Stokes and anti-Stokes optical phonon sidebands assisted by the Raman active low-energy ($\approx~6.5$ meV) interlayer shear mode of hBN. Spectral lineshape around the ZPL is measured down to 78 K, at which the linewidth of the ZPL is measured as 172 $μ$eV. By employing a quadratic electron-phonon interaction, the temperature-dependent broadening and the lineshift of the ZPL are found to follow $T+T^5$ and $T+T^3$ temperature dependence, respectively. Furthermore, the temperature-dependent lineshape around the ZPL is modeled with a linear electron-phonon coupling theory, which results in the Debye-Waller factor of the ZPL emission as 0.59. |
| title | The effect of electron-phonon interactions on the spectral properties of single defects in hexagonal boron nitride |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/1808.10611 |