Giant enhancement of perpendicular magnetic anisotropy and induced quantum anomalous Hall effect in graphene/NiI2 heterostructures via tuning the van der Waals interlayer distance
文献类型：期刊论文
| 作者 | Cui, Qirui; Liang, Jinghua; Yang, Baishun; Wang, Zhiwen; Li, Peng; Cui, Ping; Yang, Hongxin |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2020 |
| 卷号 | 101期号:21 |
| 关键词 | TOTAL-ENERGY CALCULATIONS FERROMAGNETISM FIELD CRYSTAL STATE BR CL |
| DOI | 10.1103/PhysRevB.101.214439 |
| 英文摘要 | Using first-principles calculations, we reveal that the perpendicular magnetic anisotropy of NiI2 monolayer can be effectively enhanced via decreasing the interlayer distance of graphene/NiI2 (Gr/NiI2) van der Waals (vdW) heterostructures. Furthermore, by analyzing the atomic-resolved magnetocrystalline anisotropy energy (MAE), orbital hybridization-resolved MAE and the density of states we elucidate that this magnetic anisotropy enhancement mainly originated from the electronic states change of 5p orbitals of interfacial I atoms. At the same time, we find that the NiI2 substrate induces strong magnetic proximity effects on graphene and the quantum anomalous Hall effect (QAHE) can be acquired by decreasing the interlayer spacing. Our work demonstrates the control of magnetic anisotropy of two-dimensional ferromagnetic materials via tuning vdW interlayer distance, and provides a van der Waals system to realize the QAHE. |
| 学科主题 | Materials Science ; Physics |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/20705]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | 1.Yang, HX (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China. 2.Yang, HX (corresponding author), Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Cui, Qirui,Liang, Jinghua,Yang, Baishun,et al. Giant enhancement of perpendicular magnetic anisotropy and induced quantum anomalous Hall effect in graphene/NiI2 heterostructures via tuning the van der Waals interlayer distance[J]. PHYSICAL REVIEW B,2020,101(21). |
| APA | Cui, Qirui.,Liang, Jinghua.,Yang, Baishun.,Wang, Zhiwen.,Li, Peng.,...&Yang, Hongxin.(2020).Giant enhancement of perpendicular magnetic anisotropy and induced quantum anomalous Hall effect in graphene/NiI2 heterostructures via tuning the van der Waals interlayer distance.PHYSICAL REVIEW B,101(21). |
| MLA | Cui, Qirui,et al."Giant enhancement of perpendicular magnetic anisotropy and induced quantum anomalous Hall effect in graphene/NiI2 heterostructures via tuning the van der Waals interlayer distance".PHYSICAL REVIEW B 101.21(2020). |
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来源：宁波材料技术与工程研究所
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