Disorder-Induced Suppression of Antiferromagnetic Magnon Transport in Cr2O3
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arXiv
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| Autores principales: | , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866913859278733312 |
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| author | Keagy, Josiah Liu, Haoyu Tang, Junyu Tan, Weilun Yuan, Wei Mahesh, Sumukh Cheng, Ran Shi, Jing |
| author_facet | Keagy, Josiah Liu, Haoyu Tang, Junyu Tan, Weilun Yuan, Wei Mahesh, Sumukh Cheng, Ran Shi, Jing |
| contents | We explore the impact of spin disorder associated with structural defects on antiferromagnetic magnon transport by probing the spin-flop transition of Cr2O3 using spin Seebeck effect measurements. By fabricating homoepitaxial Cr2O3 films grown on smooth Cr2O3 crystals, we systematically vary the thickness of the films in which the presence of point defects modulates the spin-flop transition field. We find that magnon propagation through the film is entirely suppressed for film thickness greater than 3 nm, revealing the pivotal role of disorder in governing antiferromagnetic magnon transport. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_19374 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Disorder-Induced Suppression of Antiferromagnetic Magnon Transport in Cr2O3 Keagy, Josiah Liu, Haoyu Tang, Junyu Tan, Weilun Yuan, Wei Mahesh, Sumukh Cheng, Ran Shi, Jing Materials Science We explore the impact of spin disorder associated with structural defects on antiferromagnetic magnon transport by probing the spin-flop transition of Cr2O3 using spin Seebeck effect measurements. By fabricating homoepitaxial Cr2O3 films grown on smooth Cr2O3 crystals, we systematically vary the thickness of the films in which the presence of point defects modulates the spin-flop transition field. We find that magnon propagation through the film is entirely suppressed for film thickness greater than 3 nm, revealing the pivotal role of disorder in governing antiferromagnetic magnon transport. |
| title | Disorder-Induced Suppression of Antiferromagnetic Magnon Transport in Cr2O3 |
| topic | Materials Science |
| url | https://arxiv.org/abs/2505.19374 |