Correlated states in doubly-aligned hBN/graphene/hBN heterostructures
文献类型：期刊论文
| 作者 | Sun, Xingdan13,14; Zhang, Shihao11,12; Liu, Zhiyong13,14; Zhu, Honglei13,14; Huang, Jinqiang13,14; Yuan, Kai9,10; Wang, Zhenhua13,14; Watanabe, Kenji8; Taniguchi, Takashi7; Li, Xiaoxi5,6,13,14 |
| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2021-12-10 |
| 卷号 | 12期号:1页码:8 |
| DOI | 10.1038/s41467-021-27514-y |
| 通讯作者 | Wang, Zhenhua(zhwang@imr.ac.cn) ; Kang, Jun(jkang@csrc.ac.cn) ; Liu, Jianpeng(liujp@shanghaitech.edu.cn) ; Ye, Yu(ye_yu@pku.edu.cn) ; Han, Zheng Vitto(vitto.han@gmail.com) |
| 英文摘要 | Interfacial moire superlattices in van der Waals vertical assemblies effectively reconstruct the crystal symmetry, leading to opportunities for investigating exotic quantum states. Notably, a two-dimensional nanosheet has top and bottom open surfaces, allowing the specific case of doubly aligned super-moire lattice to serve as a toy model for studying the tunable lattice symmetry and the complexity of related electronic structures. Here, we show that by doubly aligning a graphene monolayer to both top and bottom encapsulating hexagonal boron nitride (h-BN), multiple conductivity minima are observed away from the main Dirac point, which are sensitively tunable with respect to the small twist angles. Moreover, our experimental evidences together with theoretical calculations suggest correlated insulating states at integer fillings of -5, -6, -7 electrons per moire unit cell, possibly due to inter-valley coherence. Our results provide a way to construct intriguing correlations in 2D electronic systems in the weak interaction regime. The alignment of three 2D nanosheets leads to the formation of super-moire atomic lattices, which can influence the electronic properties of van der Waals structures. Here, the authors report evidence of possible correlated insulating states in doubly-aligned hBN/graphene/hBN heterostructures, in a weak-interaction regime. |
| 资助项目 | National Key R&D Program of China[2017YFA0206302] ; National Key R&D Program of China[2019YFA0307800] ; National Key R&D Program of China[2020YFA0309601] ; National Key R&D Program of China[2018YFA0306900] ; National Natural Science Foundation of China (NSFC)[11974357] ; National Natural Science Foundation of China (NSFC)[U1932151] ; National Natural Science Foundation of China (NSFC)[51627801] ; National Natural Science Foundation of China (NSFC)[12074029] ; National Natural Science Foundation of China (NSFC)[U1930402] ; National Natural Science Foundation of China (NSFC)[52031014] ; National Natural Science Foundation of China (NSFC)[11991060] ; ShanghaiTech University ; Joint Research Fund of Liaoning-Shenyang National Laboratory for Materials Science[2019JH3/30100031] ; Liaoning Provincial Natural Science Fund[2021-MS-006] ; Elemental Strategy Initiative by MEXT, Japan[JPMXP0112101001] ; JSPS KAKENHI[19H05790] ; JSPS KAKENHI[JP20H00354] ; A3 Foresight by JSPS |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000729179400015 |
| 出版者 | NATURE PORTFOLIO |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China (NSFC) ; ShanghaiTech University ; Joint Research Fund of Liaoning-Shenyang National Laboratory for Materials Science ; Liaoning Provincial Natural Science Fund ; Elemental Strategy Initiative by MEXT, Japan ; JSPS KAKENHI ; A3 Foresight by JSPS |
| 源URL | [http://ir.imr.ac.cn/handle/321006/167340]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wang, Zhenhua; Kang, Jun; Liu, Jianpeng; Ye, Yu; Han, Zheng Vitto |
| 作者单位 | 1.Beijing Computat Sci Res Ctr, Beijing 100193, Peoples R China 2.Univ Chinese Acad Sci, CAS Ctr Excellence Topol Quantum Computat, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Sch Phys Sci, Beijing, Peoples R China 4.Natl Univ Def Technol, Coll Adv Interdisciplinary Studies, Changsha 410073, Peoples R China 5.Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Peoples R China 6.Shanxi Univ, Inst Optoelect, State Key Lab Quantum Opt & Quantum Opt Devices, Taiyuan 030006, Peoples R China 7.Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan 8.Natl Inst Mat Sci, Res Ctr Funct Mat, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan 9.Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China 10.Peking Univ, Nanooptoelect Frontier Ctr, Sch Phys, State Key Lab Mesoscop Phys,Minist Educ, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Xingdan,Zhang, Shihao,Liu, Zhiyong,et al. Correlated states in doubly-aligned hBN/graphene/hBN heterostructures[J]. NATURE COMMUNICATIONS,2021,12(1):8. |
| APA | Sun, Xingdan.,Zhang, Shihao.,Liu, Zhiyong.,Zhu, Honglei.,Huang, Jinqiang.,...&Zhang, Zhidong.(2021).Correlated states in doubly-aligned hBN/graphene/hBN heterostructures.NATURE COMMUNICATIONS,12(1),8. |
| MLA | Sun, Xingdan,et al."Correlated states in doubly-aligned hBN/graphene/hBN heterostructures".NATURE COMMUNICATIONS 12.1(2021):8. |
入库方式： OAI收割
来源：金属研究所
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