Are there type-III multiferroics?
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arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Acceso en línea: | |
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| _version_ | 1866916662980116480 |
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| author | Wang, Haojin Liu, Haitao Ye, Meng Li, Yuanchang |
| author_facet | Wang, Haojin Liu, Haitao Ye, Meng Li, Yuanchang |
| contents | Multiferroics are known to be classified into two types. However, type-I lacks sufficient magnetoelectric coupling and type-II lacks sufficient electric polarization, making both practically difficult. In this work, we explore the possibility of type-III multiferroics, where the origins of ferroelectricity and magnetism are highly intertwined but not causally related, with a combination of strong magnetoelectric coupling and large polarization. Our first-principles calculations predict that monolayer TiCdO$_{4}$ is such a type-III ferroelectric-ferromagnetic multiferroics with both electronic and magnetic orders originating from competing electron populations on oxygen atoms. It shows an electric polarization of 50 $μ$C/m$^{2}$ while the maximum linear and quadratic magnetoelectric response are as high as 35000 ps/m and 1.59 $\times$ 10$^{-14}$ s/A, respectively. Our study opens up new perspectives for the discovery and design of much-anticipated multiferroics that can be used for cross-modulation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_20542 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Are there type-III multiferroics? Wang, Haojin Liu, Haitao Ye, Meng Li, Yuanchang Materials Science Mesoscale and Nanoscale Physics Multiferroics are known to be classified into two types. However, type-I lacks sufficient magnetoelectric coupling and type-II lacks sufficient electric polarization, making both practically difficult. In this work, we explore the possibility of type-III multiferroics, where the origins of ferroelectricity and magnetism are highly intertwined but not causally related, with a combination of strong magnetoelectric coupling and large polarization. Our first-principles calculations predict that monolayer TiCdO$_{4}$ is such a type-III ferroelectric-ferromagnetic multiferroics with both electronic and magnetic orders originating from competing electron populations on oxygen atoms. It shows an electric polarization of 50 $μ$C/m$^{2}$ while the maximum linear and quadratic magnetoelectric response are as high as 35000 ps/m and 1.59 $\times$ 10$^{-14}$ s/A, respectively. Our study opens up new perspectives for the discovery and design of much-anticipated multiferroics that can be used for cross-modulation. |
| title | Are there type-III multiferroics? |
| topic | Materials Science Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2503.20542 |