Observation of Interfacial Antiferromagnetic Coupling between Magnetic Topological Insulator and Antiferromagnetic Insulator
文献类型：期刊论文
| 作者 | Wang, Fei4,5; Xiao, Di4; Yuan, Wei1,2; Jiang, Jue4; Zhao, Yi-Fan4; Zhang, Ling4; Yao, Yunyan1; Liu, Wei5; Zhang, Zhidong5; Liu, Chaoxing4 |
| 刊名 | NANO LETTERS
 |
| 出版日期 | 2019-05-01 |
| 卷号 | 19期号:5页码:2945-2952 |
| 关键词 | Topological insulators antiferromagnetic insulators exchange coupling effect antiferromagnetic coupling exchange bias effect |
| ISSN号 | 1530-6984 |
| DOI | 10.1021/acs.nanolett.9b00027 |
| 通讯作者 | Chang, Cui-Zu(cxc955@psu.edu) |
| 英文摘要 | Inducing magnetic orders in a topological insulator (TI) to break its time reversal symmetry has been predicted to reveal many exotic topological quantum phenomena. The manipulation of magnetic orders in a TI layer can play a key role in harnessing these quantum phenomena toward technological applications. Here we fabricated a thin magnetic TI film on an antiferromagnetic (AFM) insulator Cr2O3 layer and found that the magnetic moments of the magnetic TI layer and the surface spins of the Cr2O3 layers favor interfacial AFM coupling. Field cooling studies show a crossover from negative to positive exchange bias clarifying the competition between the interfacial AFM coupling energy and the Zeeman energy in the AFM insulator layer. The interfacial exchange coupling also enhances the Curie temperature of the magnetic TI layer. The unique interfacial AFM alignment in magnetic TI on AFM insulator heterostructures opens a new route toward manipulating the interplay between topological states and magnetic orders in spin-engineered heterostructures, facilitating the exploration of proof-of-concept TI-based spintronic and electronic devices with multifunctionality and low power consumption. |
| 资助项目 | ARO Young Investigator Program Award[W911NF1810198] ; Alfred P. Sloan Research Fellowship ; Penn State Two-Dimensional Crystal Consortium Materials Innovation Platform (2DCC-MIP) under NSF[DMR-1539916] ; Office of Naval Research[N00014-15-1-2675] ; Office of Naval Research[N00014-15-1-2370] ; State Key Program of Research and Development of China[2017YFA0206302] ; National Natural Science Foundation of China (NSFC)[11574006] ; National Natural Science Foundation of China (NSFC)[51590883] ; National Natural Science Foundation of China (NSFC)[51331006] ; National Natural Science Foundation of China (NSFC)[51771198] ; Key Research Program of Chinese Academy of Sciences[KJZD-EW-M05-3] ; National Basic Research Programs of China[2015CB921104] ; DOE[DE-SC0019064] ; DOE[DE-FG02-07ER46351] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000467781900023 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | ARO Young Investigator Program Award ; Alfred P. Sloan Research Fellowship ; Penn State Two-Dimensional Crystal Consortium Materials Innovation Platform (2DCC-MIP) under NSF ; Office of Naval Research ; State Key Program of Research and Development of China ; National Natural Science Foundation of China (NSFC) ; Key Research Program of Chinese Academy of Sciences ; National Basic Research Programs of China ; DOE |
| 源URL | [http://ir.imr.ac.cn/handle/321006/133550]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Chang, Cui-Zu |
| 作者单位 | 1.Peking Univ, Sch Phys, Int Ctr Quantum Mat, Beijing 100871, Peoples R China 2.Univ Calif Riverside, Dept Phys, Riverside, CA 92521 USA 3.Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China 4.Penn State Univ, Dept Phys, University Pk, PA 16802 USA 5.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Fei,Xiao, Di,Yuan, Wei,et al. Observation of Interfacial Antiferromagnetic Coupling between Magnetic Topological Insulator and Antiferromagnetic Insulator[J]. NANO LETTERS,2019,19(5):2945-2952. |
| APA | Wang, Fei.,Xiao, Di.,Yuan, Wei.,Jiang, Jue.,Zhao, Yi-Fan.,...&Chang, Cui-Zu.(2019).Observation of Interfacial Antiferromagnetic Coupling between Magnetic Topological Insulator and Antiferromagnetic Insulator.NANO LETTERS,19(5),2945-2952. |
| MLA | Wang, Fei,et al."Observation of Interfacial Antiferromagnetic Coupling between Magnetic Topological Insulator and Antiferromagnetic Insulator".NANO LETTERS 19.5(2019):2945-2952. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。