Direct Dark Matter searches with Metal Halide Perovskites
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arXiv
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| Autores principales: | , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866909946908508160 |
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| author | Baiocco, Davide Marian, Damiano Marino, Giulio Panci, Paolo Polini, Marco Tredicucci, Alessandro |
| author_facet | Baiocco, Davide Marian, Damiano Marino, Giulio Panci, Paolo Polini, Marco Tredicucci, Alessandro |
| contents | Polar materials with optical phonons in the meV range are excellent candidates for both dark matter direct detection (via dark photon-mediated scattering) and light dark matter absorption. In this study, we propose, for the first time, the metal halide perovskites MAPbI$_3$, MAPbCl$_3$, and CsPbI$_3$ for these purposes. Our findings reveal that CsPbI$_3$ is the best material, significantly improving exclusion limits compared to other polar materials. For scattering, CsPbI$_3$ can probe dark matter masses down to the keV range. For absorption, it enhances sensitivity to detect dark photon masses below $\sim 10~{\rm meV}$. The only material which has so far been investigated and that could provide competitive bounds is CsI, which, however, is challenging to grow in kilogram-scale sizes due to its considerably lower stability compared to CsPbI$_3$. Moreover, CsI is isotropic while the anisotropic structure of CsPbI$_3$ enables daily modulation analysis, showing that a significant percentage of daily modulation exceeding 1% is achievable for dark matter masses below $40~{\rm keV}$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_01732 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Direct Dark Matter searches with Metal Halide Perovskites Baiocco, Davide Marian, Damiano Marino, Giulio Panci, Paolo Polini, Marco Tredicucci, Alessandro High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics Materials Science High Energy Physics - Experiment Polar materials with optical phonons in the meV range are excellent candidates for both dark matter direct detection (via dark photon-mediated scattering) and light dark matter absorption. In this study, we propose, for the first time, the metal halide perovskites MAPbI$_3$, MAPbCl$_3$, and CsPbI$_3$ for these purposes. Our findings reveal that CsPbI$_3$ is the best material, significantly improving exclusion limits compared to other polar materials. For scattering, CsPbI$_3$ can probe dark matter masses down to the keV range. For absorption, it enhances sensitivity to detect dark photon masses below $\sim 10~{\rm meV}$. The only material which has so far been investigated and that could provide competitive bounds is CsI, which, however, is challenging to grow in kilogram-scale sizes due to its considerably lower stability compared to CsPbI$_3$. Moreover, CsI is isotropic while the anisotropic structure of CsPbI$_3$ enables daily modulation analysis, showing that a significant percentage of daily modulation exceeding 1% is achievable for dark matter masses below $40~{\rm keV}$. |
| title | Direct Dark Matter searches with Metal Halide Perovskites |
| topic | High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics Materials Science High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2502.01732 |