Realizing Room-Temperature Ferromagnetism in Molecular-Intercalated Antiferromagnet VOCl
文献类型：期刊论文
| 作者 | Liu, Chaocheng5; Li, Zhi5; Chen, Zheng4; Hu, Jiyu6; Duan, Hengli5; Wang, Chao5; Feng, Sihua5; Liu, Ruiqi5; Zhang, Guobin5; Cao, Jiefeng1 |
| 刊名 | ADVANCED MATERIALS
 |
| 出版日期 | 2024-07-10 |
| 关键词 | electrochemical intercalation ferromagnetism modulation interlayer coupling orbital hybridization vdW magnetic materials |
| ISSN号 | 0935-9648 |
| DOI | 10.1002/adma.202405284 |
| 通讯作者 | Duan, Hengli(hlduan@ustc.edu.cn) ; Li, Pai(lipai@mail.ustc.edu.cn) ; Yan, Wensheng(ywsh2000@ustc.edu.cn) |
| 英文摘要 | 2D van der Waals (vdW) magnets are gaining attention in fundamental physics and advanced spintronics, due to their unique dimension-dependent magnetism and potential for ultra-compact integration. However, achieving intrinsic ferromagnetism with high Curie temperature (TC) remains a technical challenge, including preparation and stability issues. Herein, an applicable electrochemical intercalation strategy to decouple interlayer interaction and guide charge doping in antiferromagnet VOCl, thereby inducing robust room-temperature ferromagnetism, is developed. The expanded vdW gap isolates the neighboring layers and shrinks the distance between the V-V bond, favoring the generation of ferromagnetic (FM) coupling with perpendicular magnetic anisotropy. Element-specific X-ray magnetic circular dichroism (XMCD) directly proves the source of the ferromagnetism. Detailed experimental results and density functional theory (DFT) calculations indicate that the charge doping enhances the FM interaction by promoting the orbital hybridization between t2g and eg. This work sheds new light on a promising way to achieve room-temperature ferromagnetism in antiferromagnets, thus addressing the critical materials demand for designing spintronic devices. The intercalation of large organic molecules decouples the interlayer interaction of VOCl and induces the intralayer ferromagnetic (FM) coupling. Meanwhile, the intercalation also guides the charge injection, promotes the hybridization of 3d orbital electrons, and further strengthens the FM interaction, ultimately achieving the transition from pristine antiferromagnetism to room-temperature ferromagnetism with out-of-plane anisotropy. image |
| 资助项目 | National Key Research and Development Program of China[2021YFA1600800] ; National Natural Science Foundation of China[11975234] ; National Natural Science Foundation of China[12105286] ; National Natural Science Foundation of China[12275271] ; National Natural Science Foundation of China[12305369] ; Major Science and Technology Project of Anhui Province[202103a05020025] ; Key Program of Research and Development of Hefei Science Center CAS[2021HSC-KPRD002] ; Users with Excellence Program of Hefei Science Center CAS[2020HSC-CIP013] ; Users with Excellence Program of Hefei Science Center CAS[2021HSC-UE002] ; Collaborative Innovation Program of Hefei Science Center CAS[2022HSC-CIP028] ; Fundamental Research Funds for the Central Universities[WK2310000103] ; Swedish Research Council[2018-07152] ; Swedish Governmental Agency for Innovation Systems[2018-04969] ; Formas[2019-02496] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001268474200001 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Major Science and Technology Project of Anhui Province ; Key Program of Research and Development of Hefei Science Center CAS ; Users with Excellence Program of Hefei Science Center CAS ; Collaborative Innovation Program of Hefei Science Center CAS ; Fundamental Research Funds for the Central Universities ; Swedish Research Council ; Swedish Governmental Agency for Innovation Systems ; Formas |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/136968]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Duan, Hengli; Li, Pai; Yan, Wensheng |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China 2.Lund Univ, MAX Lab 4, S-22100 Lund, Sweden 3.Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Mat Integrated Circuits, Shanghai 200050, Peoples R China 4.Chinese Acad Sci, High Magnet Field Lab, Hefei 230031, Peoples R China 5.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230026, Peoples R China 6.Hefei Normal Univ, Sch Phys & Mat Engn, Hefei 230601, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Chaocheng,Li, Zhi,Chen, Zheng,et al. Realizing Room-Temperature Ferromagnetism in Molecular-Intercalated Antiferromagnet VOCl[J]. ADVANCED MATERIALS,2024. |
| APA | Liu, Chaocheng.,Li, Zhi.,Chen, Zheng.,Hu, Jiyu.,Duan, Hengli.,...&Yan, Wensheng.(2024).Realizing Room-Temperature Ferromagnetism in Molecular-Intercalated Antiferromagnet VOCl.ADVANCED MATERIALS. |
| MLA | Liu, Chaocheng,et al."Realizing Room-Temperature Ferromagnetism in Molecular-Intercalated Antiferromagnet VOCl".ADVANCED MATERIALS (2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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