Space Group Symmetry of Chiral Fe-deficient van der Waals Magnet $\text{Fe}_{\text{3-x}}\text{GeTe}_{\text{2}}$ Probed by Convergent Beam Electron Diffraction
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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866910069522694144 |
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| author | Zaiets, O. Subakti, S. Wolf, D. Steinweh, J. Parkin, S. Lubk, A. |
| author_facet | Zaiets, O. Subakti, S. Wolf, D. Steinweh, J. Parkin, S. Lubk, A. |
| contents | The crystal symmetry of Fe-deficient $\text{Fe}_{\text{3-x}}\text{GeTe}_{\text{2}}$ at room temperature has been investigated by a combination of selected-area electron diffraction (SAED) and convergent-beam electron diffraction (CBED). By symmetry analysis of CBED patterns along different zone axis, the space group of $\text{Fe}_{\text{3-x}}\text{GeTe}_{\text{2}}$ at room-temperature has been identified as $P6_3mc$ (No.186), which derives from the high-symmetry parent system $\text{Fe}_{\text{3}}\text{GeTe}_{\text{2}}$ ($P6_3/mmc$) by breaking the mirror symmetry along the 6-fold rotation axis. The $P3m1$ (No.156) space group previously reported for $\text{Fe}_{\text{3-x}}\text{GeTe}_{\text{2}}$ is a subgroup of $P6_3mc$ suggesting further possible symmetry breaks in this non-stoichiometric system. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2506_16944 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Space Group Symmetry of Chiral Fe-deficient van der Waals Magnet $\text{Fe}_{\text{3-x}}\text{GeTe}_{\text{2}}$ Probed by Convergent Beam Electron Diffraction Zaiets, O. Subakti, S. Wolf, D. Steinweh, J. Parkin, S. Lubk, A. Mesoscale and Nanoscale Physics The crystal symmetry of Fe-deficient $\text{Fe}_{\text{3-x}}\text{GeTe}_{\text{2}}$ at room temperature has been investigated by a combination of selected-area electron diffraction (SAED) and convergent-beam electron diffraction (CBED). By symmetry analysis of CBED patterns along different zone axis, the space group of $\text{Fe}_{\text{3-x}}\text{GeTe}_{\text{2}}$ at room-temperature has been identified as $P6_3mc$ (No.186), which derives from the high-symmetry parent system $\text{Fe}_{\text{3}}\text{GeTe}_{\text{2}}$ ($P6_3/mmc$) by breaking the mirror symmetry along the 6-fold rotation axis. The $P3m1$ (No.156) space group previously reported for $\text{Fe}_{\text{3-x}}\text{GeTe}_{\text{2}}$ is a subgroup of $P6_3mc$ suggesting further possible symmetry breaks in this non-stoichiometric system. |
| title | Space Group Symmetry of Chiral Fe-deficient van der Waals Magnet $\text{Fe}_{\text{3-x}}\text{GeTe}_{\text{2}}$ Probed by Convergent Beam Electron Diffraction |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2506.16944 |