Symmetry Breaking during Low-Temperature Domain Formation in Micron-sized Magnetite Crystals
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arXiv
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| Auteurs principaux: | , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866929758379442176 |
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| author | Dong, Yue Yang, David Liu, Jialun Abdeldaim, Aly Wang, Wei Robinson, Ian |
| author_facet | Dong, Yue Yang, David Liu, Jialun Abdeldaim, Aly Wang, Wei Robinson, Ian |
| contents | We report the results of synchrotron Bragg Coherent X-ray Diffraction Imaging (BCDI) experiments to investigate domain formation in a micron-sized magnetite crystal undergoing the Verwey transition at low temperature. A strong splitting of the measured 311 Bragg reflection was observed in the low-temperature phase, indicating the formation of domains. BCDI revealed pronounced strain distributions, characterized by a clear layered stripe domain structure in real-space. Stripes were seen only along the [001] crystallographic direction, normal to the substrate surface direction, breaking the symmetry of the cubic high-temperature phase. It is argued that other domain directions were suppressed by the sample mounting orientation. More surprisingly, only a single domain orientation was observed, suggesting an additional symmetry-breaking influence originating from the shape of the crystal. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_10417 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Symmetry Breaking during Low-Temperature Domain Formation in Micron-sized Magnetite Crystals Dong, Yue Yang, David Liu, Jialun Abdeldaim, Aly Wang, Wei Robinson, Ian Mesoscale and Nanoscale Physics We report the results of synchrotron Bragg Coherent X-ray Diffraction Imaging (BCDI) experiments to investigate domain formation in a micron-sized magnetite crystal undergoing the Verwey transition at low temperature. A strong splitting of the measured 311 Bragg reflection was observed in the low-temperature phase, indicating the formation of domains. BCDI revealed pronounced strain distributions, characterized by a clear layered stripe domain structure in real-space. Stripes were seen only along the [001] crystallographic direction, normal to the substrate surface direction, breaking the symmetry of the cubic high-temperature phase. It is argued that other domain directions were suppressed by the sample mounting orientation. More surprisingly, only a single domain orientation was observed, suggesting an additional symmetry-breaking influence originating from the shape of the crystal. |
| title | Symmetry Breaking during Low-Temperature Domain Formation in Micron-sized Magnetite Crystals |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2503.10417 |