Symmetry-based phenomenological model for magnon transport in a multiferroic
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arXiv
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| Main Authors: | , , , , , , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866909393871699968 |
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| author | Harris, Isaac A. Husain, Sajid Meisenheimer, Peter Ramesh, Maya Park, Hyeon Woo Caretta, Lucas Schlom, Darrell Yao, Zhi Martin, Lane W. Íñiguez-González, Jorge Kim, Se Kwon Ramesh, Ramamoorthy |
| author_facet | Harris, Isaac A. Husain, Sajid Meisenheimer, Peter Ramesh, Maya Park, Hyeon Woo Caretta, Lucas Schlom, Darrell Yao, Zhi Martin, Lane W. Íñiguez-González, Jorge Kim, Se Kwon Ramesh, Ramamoorthy |
| contents | Magnons carriers of spin information can be controlled by electric fields in the multiferroic BiFeO$_3$ (BFO), a milestone that brings magnons closer to application in future devices. The origin of magnon-spin currents in BFO, however, is not fully understood due to BFO's complicated magnetic texture. In this letter, we present a phenomenological model to elucidate the existence of magnon spin currents in generalized multiferroics by examining the symmetries inherent to their magnetic and polar structures. This model is grounded in experimental data obtained from BFO and its derivatives, which informs the symmetry operations and resultant magnon behavior. By doing so, we address the issue of symmetry-allowed, switchable magnon spin transport in multiferroics, thereby establishing a critical framework for comprehending magnon transport within complex magnetic textures. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_10903 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Symmetry-based phenomenological model for magnon transport in a multiferroic Harris, Isaac A. Husain, Sajid Meisenheimer, Peter Ramesh, Maya Park, Hyeon Woo Caretta, Lucas Schlom, Darrell Yao, Zhi Martin, Lane W. Íñiguez-González, Jorge Kim, Se Kwon Ramesh, Ramamoorthy Materials Science Magnons carriers of spin information can be controlled by electric fields in the multiferroic BiFeO$_3$ (BFO), a milestone that brings magnons closer to application in future devices. The origin of magnon-spin currents in BFO, however, is not fully understood due to BFO's complicated magnetic texture. In this letter, we present a phenomenological model to elucidate the existence of magnon spin currents in generalized multiferroics by examining the symmetries inherent to their magnetic and polar structures. This model is grounded in experimental data obtained from BFO and its derivatives, which informs the symmetry operations and resultant magnon behavior. By doing so, we address the issue of symmetry-allowed, switchable magnon spin transport in multiferroics, thereby establishing a critical framework for comprehending magnon transport within complex magnetic textures. |
| title | Symmetry-based phenomenological model for magnon transport in a multiferroic |
| topic | Materials Science |
| url | https://arxiv.org/abs/2411.10903 |