Helicity Selection of the Cycloidal Order in Noncentrosymmetric EuIrGe$_3$
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arXiv
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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866914594993209344 |
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| author | Kurauchi, Kenshin Matsumura, Takeshi Tsukagoshi, Mitsuru Higa, Nonoka Kakihana, Masashi Hedo, Masato Nakama, Takao Ōnuki, Yoshichika |
| author_facet | Kurauchi, Kenshin Matsumura, Takeshi Tsukagoshi, Mitsuru Higa, Nonoka Kakihana, Masashi Hedo, Masato Nakama, Takao Ōnuki, Yoshichika |
| contents | The magnetic helicities of the cycloidal ordering in EuIrGe$_3$, with a noncentrosymmetric tetragonal structure, have been studied by circularly polarized resonant X-ray diffraction. It is shown that the helicity of each cycloidal domain is uniquely determined and satisfies the symmetry relations of the $C_{4v}$ point group of the crystal structure. The result shows that the cycloidal helicity is determined by the Dzyaloshinskii-Moriya type antisymmetric exchange interaction. The domain selection and the phase transition by the external magnetic field along [100] and [110] have also been studied. It is shown that the cycloidal plane prefers to be perpendicular to the field and the transverse conical state is realized. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2306_12669 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Helicity Selection of the Cycloidal Order in Noncentrosymmetric EuIrGe$_3$ Kurauchi, Kenshin Matsumura, Takeshi Tsukagoshi, Mitsuru Higa, Nonoka Kakihana, Masashi Hedo, Masato Nakama, Takao Ōnuki, Yoshichika Strongly Correlated Electrons The magnetic helicities of the cycloidal ordering in EuIrGe$_3$, with a noncentrosymmetric tetragonal structure, have been studied by circularly polarized resonant X-ray diffraction. It is shown that the helicity of each cycloidal domain is uniquely determined and satisfies the symmetry relations of the $C_{4v}$ point group of the crystal structure. The result shows that the cycloidal helicity is determined by the Dzyaloshinskii-Moriya type antisymmetric exchange interaction. The domain selection and the phase transition by the external magnetic field along [100] and [110] have also been studied. It is shown that the cycloidal plane prefers to be perpendicular to the field and the transverse conical state is realized. |
| title | Helicity Selection of the Cycloidal Order in Noncentrosymmetric EuIrGe$_3$ |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2306.12669 |