Spin amplitude wave due to dipole-quadrupole hybridization in spin-1 pyrochlore magnets
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arXiv
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866911087635464192 |
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| author | Nakai, Hiroki Hotta, Chisa |
| author_facet | Nakai, Hiroki Hotta, Chisa |
| contents | We explore the quantum pseudospin-1 pyrochlore magnet featuring Fe$^{2+}$-based spinel oxides that addresses the formation of amplitude-modulated spin-density waves. We propose that the relatively small spin-orbit coupling and the small extra crystal field splitting in these materials create anisotropic exchange interactions and strong single-ion anisotropy, respectively, whose interplay becomes the source of quadrupolar moments selectively appearing on certain sublattices, leading to a spatially modulated hybrid of dipolar and quadrupolar moments. This mechanism represents the possibility of insulating magnets to form an exotic phase with coexisting liquid-solid properties. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_15969 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Spin amplitude wave due to dipole-quadrupole hybridization in spin-1 pyrochlore magnets Nakai, Hiroki Hotta, Chisa Strongly Correlated Electrons We explore the quantum pseudospin-1 pyrochlore magnet featuring Fe$^{2+}$-based spinel oxides that addresses the formation of amplitude-modulated spin-density waves. We propose that the relatively small spin-orbit coupling and the small extra crystal field splitting in these materials create anisotropic exchange interactions and strong single-ion anisotropy, respectively, whose interplay becomes the source of quadrupolar moments selectively appearing on certain sublattices, leading to a spatially modulated hybrid of dipolar and quadrupolar moments. This mechanism represents the possibility of insulating magnets to form an exotic phase with coexisting liquid-solid properties. |
| title | Spin amplitude wave due to dipole-quadrupole hybridization in spin-1 pyrochlore magnets |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2411.15969 |