| Atomic origin of magnetic coupling of antiphase boundaries in magnetite thin films | |
| Gao, Chunyang1,2; Jiang, Yixiao1,2; Yao, Tingting1,2; Tao, Ang1; Yan, Xuexi1; Li, Xiang1; Chen, Chunlin1,2; Ma, Xiu-Liang1; Ye, Hengqiang2 | |
| Corresponding Author | Chen, Chunlin(clchen@imr.ac.cn) |
| 2022-04-30 | |
| Source Publication | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| ISSN | 1005-0302 |
| Volume | 107Pages:92-99 |
| Abstract | Revealing the magnetic coupling nature of boundary defects is crucial for in-depth understanding of the behavior and properties of magnetic materials and devices. Here, magnetite ( i.e. , Fe 3 O 4 ) thin films were grown epitaxially on (100) SrTiO 3 single-crystal substrates by pulsed laser deposition. Atomic-scale scanning transmission electron microscopy characterizations reveal that three types of antiphase boundaries (APBs) are formed in the Fe 3 O 4 thin film. They are the (100) APB that is formed on the (100) plane with a crystal translation of (1/4) a [01 1 over bar ], the type I and type II (110) APBs that are both formed on the (110) plane with the same crystal translation of (1/4) a [101] but different terminated atomic planes. The type I (110) APB is terminated at the atomic plane with mixed tetrahedral- and octahedral-sites Fe atoms, the type II (110) APB is terminated at the octahedral-site Fe plane. First-principles calculations reveal that the (100) APB and the type I (110) APB tend to form the ferromagnetic coupling that will not decrease the spin polarization of Fe 3 O 4 films, while the type II (110) APB prefers to form the antiferromagnetic coupling that will degrade the magnetic properties. The magnetic coupling modes of the APBs are closely related to the Fe-O-Fe bond angles across the boundaries. (c) 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| Keyword | Fe3O4 Transmission electron microscopy Antiphase boundary Magnetic coupling First-principles calculations |
| Funding Organization | National Natural Science Foun-dation of China ; LiaoNing Re-vitalization Talents Program ; Key Re-search Program of Frontier Sciences, CAS |
| DOI | 10.1016/j.jmst.2021.08.017 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foun-dation of China[51771200] ; National Natural Science Foun-dation of China[51971224] ; National Natural Science Foun-dation of China[51801215] ; LiaoNing Re-vitalization Talents Program[XLYC1802088] ; Key Re-search Program of Frontier Sciences, CAS[QYZDY-SSW-JSC027] ; Key Re-search Program of Frontier Sciences, CAS[X210141TL210] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000773329000002 |
| Publisher | JOURNAL MATER SCI TECHNOL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/173066 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Chen, Chunlin |
| Affiliation | 1.Chinese Acad Sci, Univ Sci & Technol China, Sch Mat Sci & Engn, Inst Met Res,Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Ji Hua Lab, Foshan 528200, Peoples R China |
| Recommended Citation GB/T 7714 | Gao, Chunyang,Jiang, Yixiao,Yao, Tingting,et al. Atomic origin of magnetic coupling of antiphase boundaries in magnetite thin films[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2022,107:92-99. |
| APA | Gao, Chunyang.,Jiang, Yixiao.,Yao, Tingting.,Tao, Ang.,Yan, Xuexi.,...&Ye, Hengqiang.(2022).Atomic origin of magnetic coupling of antiphase boundaries in magnetite thin films.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,107,92-99. |
| MLA | Gao, Chunyang,et al."Atomic origin of magnetic coupling of antiphase boundaries in magnetite thin films".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 107(2022):92-99. |
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