Anisotropic Field Suppression of Morin Transition Temperature in Epitaxially Grown Hematite Thin Films
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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_ | 1866915229279977472 |
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| author | Liu, Haoyu Zhang, Hantao Keagy, Josiah Gao, Qinwu Li, Letian Li, Junxue Cheng, Ran Shi, Jing |
| author_facet | Liu, Haoyu Zhang, Hantao Keagy, Josiah Gao, Qinwu Li, Letian Li, Junxue Cheng, Ran Shi, Jing |
| contents | We have demonstrated the existence of the Morin transition in epitaxially grown hematite thin films exceeding a critical thickness. The Morin transition temperature can be suppressed by magnetic fields applied both parallel and perpendicular to the Dzyaloshinskii-Moriya (DM) vector, exhibiting a distinct anisotropic behavior that is consistent with bulk hematite crystals. Detailed analysis explains the anisotropic behavior and provides a method for determining the DM strength, which remains nearly constant across the sample thickness over four orders of magnitude. Our findings obtained with transport measurements offer a valuable approach for studying antiferromagnetic spin configurations in thin films and nanodevices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_03892 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Anisotropic Field Suppression of Morin Transition Temperature in Epitaxially Grown Hematite Thin Films Liu, Haoyu Zhang, Hantao Keagy, Josiah Gao, Qinwu Li, Letian Li, Junxue Cheng, Ran Shi, Jing Materials Science We have demonstrated the existence of the Morin transition in epitaxially grown hematite thin films exceeding a critical thickness. The Morin transition temperature can be suppressed by magnetic fields applied both parallel and perpendicular to the Dzyaloshinskii-Moriya (DM) vector, exhibiting a distinct anisotropic behavior that is consistent with bulk hematite crystals. Detailed analysis explains the anisotropic behavior and provides a method for determining the DM strength, which remains nearly constant across the sample thickness over four orders of magnitude. Our findings obtained with transport measurements offer a valuable approach for studying antiferromagnetic spin configurations in thin films and nanodevices. |
| title | Anisotropic Field Suppression of Morin Transition Temperature in Epitaxially Grown Hematite Thin Films |
| topic | Materials Science |
| url | https://arxiv.org/abs/2504.03892 |