Design and theory of switchable linear magnetoelectricity by ferroelectricity in Type-I multiferroics
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arXiv
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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| author | Zhang, Hui-Min Ji, Cheng-Ao Zhu, Tong Xiang, Hongjun Kageyama, Hiroshi Dong, Shuai Rondinelli, James M. Lu, Xue-Zeng |
| author_facet | Zhang, Hui-Min Ji, Cheng-Ao Zhu, Tong Xiang, Hongjun Kageyama, Hiroshi Dong, Shuai Rondinelli, James M. Lu, Xue-Zeng |
| contents | We present a comprehensive theoretical investigation of magnetoelectric (ME) coupling mechanisms in 19 altermagnetic and 4 ferrimagnetic Type-I multiferroics using electronic band structure calculations with spin-orbit coupling, a first-principles ME response framework, and spin-space-group theory analysis. We formulate a universal scheme for realizing nonvolatile ME coupling in Type-I multiferroics, where two distinct pathways emerge, each dictated by spin-space symmetry. The first pathway is associated with switching of the spin splitting or the now familiar spin-momentum locking in reciprocal space, characteristic of some altermagnetic mul-tiferroics that exhibit coexisting antiferromagnetism and ferroelectricity. The second pathway involves real-space magnetization switching via electric polarization reversal, characterized by switchable components of the linear ME tensor, despite the traditionally weak coupling in Type-I systems due to the independent origins of magnetism and ferroelectricity. We demonstrate that these two intrinsic ME coupling mechanisms are mutually exclusive and propose thermodynami-cally stable compounds for experimentation. Our findings establish general design principles for controlling robust nonvolatile ME effects in multiferroic materials. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_17627 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Design and theory of switchable linear magnetoelectricity by ferroelectricity in Type-I multiferroics Zhang, Hui-Min Ji, Cheng-Ao Zhu, Tong Xiang, Hongjun Kageyama, Hiroshi Dong, Shuai Rondinelli, James M. Lu, Xue-Zeng Materials Science We present a comprehensive theoretical investigation of magnetoelectric (ME) coupling mechanisms in 19 altermagnetic and 4 ferrimagnetic Type-I multiferroics using electronic band structure calculations with spin-orbit coupling, a first-principles ME response framework, and spin-space-group theory analysis. We formulate a universal scheme for realizing nonvolatile ME coupling in Type-I multiferroics, where two distinct pathways emerge, each dictated by spin-space symmetry. The first pathway is associated with switching of the spin splitting or the now familiar spin-momentum locking in reciprocal space, characteristic of some altermagnetic mul-tiferroics that exhibit coexisting antiferromagnetism and ferroelectricity. The second pathway involves real-space magnetization switching via electric polarization reversal, characterized by switchable components of the linear ME tensor, despite the traditionally weak coupling in Type-I systems due to the independent origins of magnetism and ferroelectricity. We demonstrate that these two intrinsic ME coupling mechanisms are mutually exclusive and propose thermodynami-cally stable compounds for experimentation. Our findings establish general design principles for controlling robust nonvolatile ME effects in multiferroic materials. |
| title | Design and theory of switchable linear magnetoelectricity by ferroelectricity in Type-I multiferroics |
| topic | Materials Science |
| url | https://arxiv.org/abs/2510.17627 |