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Intrinsic magnetic topological insulator phases in the Sb doped MnBi2Te4 bulks and thin flakes | |
Chen, Bo1,2,3; Fei, Fucong1,2,3; Zhang, Dongqin1,2; Zhang, Bo4; Liu, Wanling5,6,7; Zhang, Shuai1,2,3; Wang, Pengdong4; Wei, Boyuan1,2,3; Zhang, Yong1,2,3; Zuo, Zewen1,2,3; Guo, Jingwen1,2,3; Liu, Qianqian1,2,3; Wang, Zilu8,9; Wu, Xuchuan8,9; Zong, Junyu1,2; Xie, Xuedong1,2; Chen, Wang1,2; Sun, Zhe4; Wang, Shancai8,9; Zhang, Yi1,2; Zhang, Minhao1,2,3; Wang, Xuefeng1,3,10; Song, Fengqi1,2,3; Zhang, Haijun1,2; Shen, Dawei6,7; Wang, Baigeng1,2
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2019-10-02 | |
发表期刊 | NATURE COMMUNICATIONS |
ISSN | 2041-1723 |
卷号 | 10 |
发表状态 | 已发表 |
DOI | 10.1038/s41467-019-12485-y |
摘要 | Magnetic topological insulators (MTIs) offer a combination of topologically nontrivial characteristics and magnetic order and show promise in terms of potentially interesting physical phenomena such as the quantum anomalous Hall (QAH) effect and topological axion insulating states. However, the understanding of their properties and potential applications have been limited due to a lack of suitable candidates for MTIs. Here, we grow two-dimensional single crystals of Mn(SbxBi(1-x))(2)Te-4 bulk and exfoliate them into thin flakes in order to search for intrinsic MTIs. We perform angle-resolved photoemission spectroscopy, low-temperature transport measurements, and first-principles calculations to investigate the band structure, transport properties, and magnetism of this family of materials, as well as the evolution of their topological properties. We find that there exists an optimized MTI zone in the Mn (SbxBi(1-x))(2)Te-4 phase diagram, which could possibly host a high-temperature QAH phase, offering a promising avenue for new device applications.;Magnetic topological insulators (MTIs) offer a combination of topologically nontrivial characteristics and magnetic order and show promise in terms of potentially interesting physical phenomena such as the quantum anomalous Hall (QAH) effect and topological axion insulating states. However, the understanding of their properties and potential applications have been limited due to a lack of suitable candidates for MTIs. Here, we grow two-dimensional single crystals of Mn(SbxBi(1-x))(2)Te-4 bulk and exfoliate them into thin flakes in order to search for intrinsic MTIs. We perform angle-resolved photoemission spectroscopy, low-temperature transport measurements, and first-principles calculations to investigate the band structure, transport properties, and magnetism of this family of materials, as well as the evolution of their topological properties. We find that there exists an optimized MTI zone in the Mn (SbxBi(1-x))(2)Te-4 phase diagram, which could possibly host a high-temperature QAH phase, offering a promising avenue for new device applications. |
URL | 查看原文 |
收录类别 | SCI ; SCIE |
语种 | 英语 |
资助项目 | Users with Excellence Program of Hefei Science Center CAS[2019HSC-UE007] ; Users with Excellence Program of Hefei Science Center CAS[2019HSC-UE007] |
WOS研究方向 | Science & Technology - Other Topics ; Science & Technology - Other Topics |
WOS类目 | Multidisciplinary Sciences ; Multidisciplinary Sciences |
WOS记录号 | WOS:000488485300004 |
出版者 | NATURE PUBLISHING GROUP |
WOS关键词 | SEMIMETAL ; SEMIMETAL ; SURFACE ; SURFACE ; FERMION ; FERMION ; STATE ; STATE |
原始文献类型 | Article |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/80414 |
专题 | 物质科学与技术学院_硕士生 物质科学与技术学院_博士生 |
共同第一作者 | Fei, Fucong; Zhang, Dongqin; Zhang, Bo; Liu, Wanling |
通讯作者 | Fei, Fucong; Song, Fengqi; Zhang, Haijun; Shen, Dawei |
作者单位 | 1.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China 2.Nanjing Univ, Coll Phys, Nanjing 210093, Jiangsu, Peoples R China 3.AMI, Nanjing 211805, Jiangsu, Peoples R China 4.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China 5.ShanghaiTech Univ, Sch Phys Sci & Technol, Div Photon Sci & Condensed Matter Phys, Shanghai 200031, Peoples R China 6.Chinese Acad Sci, SIMIT, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China 7.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China 8.Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China 9.Renmin Univ China, Beijing Key Lab Opto Elect Funct Mat & Micro Nano, Beijing 100872, Peoples R China 10.Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Bo,Fei, Fucong,Zhang, Dongqin,et al. Intrinsic magnetic topological insulator phases in the Sb doped MnBi2Te4 bulks and thin flakes[J]. NATURE COMMUNICATIONS,2019,10. |
APA | Chen, Bo.,Fei, Fucong.,Zhang, Dongqin.,Zhang, Bo.,Liu, Wanling.,...&Wang, Baigeng.(2019).Intrinsic magnetic topological insulator phases in the Sb doped MnBi2Te4 bulks and thin flakes.NATURE COMMUNICATIONS,10. |
MLA | Chen, Bo,et al."Intrinsic magnetic topological insulator phases in the Sb doped MnBi2Te4 bulks and thin flakes".NATURE COMMUNICATIONS 10(2019). |
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