Interplay between Different Magnetisms in Cr-Doped Topological Insulators
文献类型：期刊论文
| 作者 | Kou, XF ; Lang, MR ; Fan, YB ; Jiang, Y ; Nie, TX ; Zhang, JM ; Jiang, WJ ; Wang, Y ; Yao, YG ; He, L ; Wang, KL |
| 刊名 | ACS NANO
 |
| 出版日期 | 2013 |
| 卷号 | 7期号:10页码:9205 |
| 关键词 | topological insulator magnetic doping van Vleck magnetism electric-field-controlled ferromagnetism |
| ISSN号 | 1936-0851 |
| 通讯作者 | He, L (reprint author), Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA. |
| 中文摘要 | Breaking the time-reversal-symmetry of topological insulators through magnetic doping has led to exotic physical discoveries. Here, we report the gate-dependent magneto-transport measurements on the Cr-doped (BixSb1-x)(2)Te-3 thin films. With effective top-gate modulations, we demonstrate the presence of both the hole-mediated RKKY coupling and carrier-independent van Vleck magnetism in the magnetic TI systems. Most importantly, by varying the Cr doping concentrations from 2% to 20%, we unveil the interplay between the two magnetic orders and establish the valid approach to either enhance or suppress each individual contribution. The electric-field-controlled ferromagnetisms identified in the Cr-doped TI materials will serve as the fundamental step to further explore the TRS-breaking TI systems, and it applications. may also help to expand the functionality of TI-based device for spintronics |
| 资助信息 | Focus Center Research Program-Center on Functional Engineered Nano Architectonics (FENA); Defense Advanced Research Projects Agency (DARPA) [N66001-12-1-4034, N66001-11-1-4105]; Raytheon endowed chair professorship; Natural Science Foundation of China [11174244]; Zhejiang Provincial Natural Science Foundation of China [LR12A04002]; National Young 1000 Talents Plan; National Basic Research Program of China (973 Program) [2011CBA00100]; National Natural Science Foundation of China [10974231, 11174337] |
| 语种 | 英语 |
| 公开日期 | 2014-01-16 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57132]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Kou, XF,Lang, MR,Fan, YB,et al. Interplay between Different Magnetisms in Cr-Doped Topological Insulators[J]. ACS NANO,2013,7(10):9205. |
| APA | Kou, XF.,Lang, MR.,Fan, YB.,Jiang, Y.,Nie, TX.,...&Wang, KL.(2013).Interplay between Different Magnetisms in Cr-Doped Topological Insulators.ACS NANO,7(10),9205. |
| MLA | Kou, XF,et al."Interplay between Different Magnetisms in Cr-Doped Topological Insulators".ACS NANO 7.10(2013):9205. |
入库方式： OAI收割
来源：物理研究所
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