Strain-tunable ferromagnetism and chiral spin textures in two-dimensional Janus chromium dichalcogenides
文献类型：期刊论文
| 作者 | Cui, Qirui; Liang, Jinghua; Shao, Ziji; Cui, Ping; Yang, Hongxin |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2020 |
| 卷号 | 102期号:9 |
| 关键词 | TOTAL-ENERGY CALCULATIONS SUPEREXCHANGE INTERACTION ANISOTROPY SKYRMIONS DYNAMICS |
| DOI | 10.1103/PhysRevB.102.094425 |
| 英文摘要 | Using first-principles calculations and micromagnetic simulations, we systematically investigate the magnetic properties of two-dimensional Janus chromium dichalcogenides (CrXTe, X = S, Se) under strain. We find that the CrSTe monolayer has high Curie temperature (T-c) of 295 K and an out-of-plane magnetic anisotropy. The CrSeTe monolayer has large Dzyaloshinskii-Moriya interaction (DMI) which can host chiral Neel domain wall (DW), and under an external magnetic field, the skyrmion states can be induced. As tensile strain increases, ferromagnetic exchange coupling and perpendicular magnetic anisotropy of Janus CrXTe monolayers both increase significantly, and the magnitude of DMI is reduced, which results in the giant ferromagnetism enhancement. Interestingly, for CrSeTe monolayer, distinct spin textures from chiral DW to uniform ferromagnetic states are induced under tensile strain. Moreover, the diameter and density of skyrmions in CrSeTe can be tuned by the amplitude of external magnetic field and strain. These findings highlight that the Janus CrXTe monolayers as good candidates for spintronic nanodevices. |
| 学科主题 | Materials Science ; Physics |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/20489]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | 1.Yang, HX (corresponding author), Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China. 2.Yang, HX (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Cui, Qirui,Liang, Jinghua,Shao, Ziji,et al. Strain-tunable ferromagnetism and chiral spin textures in two-dimensional Janus chromium dichalcogenides[J]. PHYSICAL REVIEW B,2020,102(9). |
| APA | Cui, Qirui,Liang, Jinghua,Shao, Ziji,Cui, Ping,&Yang, Hongxin.(2020).Strain-tunable ferromagnetism and chiral spin textures in two-dimensional Janus chromium dichalcogenides.PHYSICAL REVIEW B,102(9). |
| MLA | Cui, Qirui,et al."Strain-tunable ferromagnetism and chiral spin textures in two-dimensional Janus chromium dichalcogenides".PHYSICAL REVIEW B 102.9(2020). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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