Synergistic correlated states and nontrivial topology in coupled graphene-insulator heterostructures

doi:10.1038/s41467-023-41293-8

IMR OpenIR

	Synergistic correlated states and nontrivial topology in coupled graphene-insulator heterostructures
	Lu, Xin 1; Zhang, Shihao 1; Wang, Yaning 2; Gao, Xiang 3,4; Yang, Kaining 3,4; Guo, Zhongqing 1; Gao, Yuchen 5,6; Ye, Yu 5,6; Han, Zheng 3,4; Liu, Jianpeng 1,7
通讯作者	Liu, Jianpeng(liujp@shanghaitech.edu.cn)
	2023-09-09
发表期刊	NATURE COMMUNICATIONS
卷号	14 期号:1 页码:12
摘要	Graphene has aroused great attention due to the intriguing properties associated with its low-energy Dirac Hamiltonian. When graphene is coupled with a correlated insulating substrate, electronic states that cannot be revealed in either individual layer may emerge in a synergistic manner. Here, we theoretically study the correlated and topological states in Coulomb-coupled and gate-tunable graphene-insulator heterostructures. By electrostatically aligning the electronic bands, charge carriers transferred between graphene and the insulator can yield a long-wavelength electronic crystal at the interface, exerting a superlattice Coulomb potential on graphene and generating topologically nontrivial subbands. This coupling can further boost electron-electron interaction effects in graphene, leading to a spontaneous bandgap formation at the Dirac point and interaction-enhanced Fermi velocity. Reciprocally, the electronic crystal at the interface is substantially stabilized with the help of cooperative interlayer Coulomb coupling. We propose a number of substrate candidates for graphene to experimentally demonstrate these effects.
DOI	10.1038/s41467-023-41293-8
收录类别	SCI
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:001188207500001
出版者	NATURE PORTFOLIO
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/184911
专题	中国科学院金属研究所
通讯作者	Liu, Jianpeng
作者单位	1.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Metal Res, Shenyang, Peoples R China 3.Shanxi Univ, Inst Optoelect, State Key Lab Quantum Opt & Quantum Opt Devices, Taiyuan 030006, Peoples R China 4.Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Peoples R China 5.Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China 6.Peking Univ, Sch Phys, State Key Lab Mesoscop Phys & Frontiers Sci Ctr N, Beijing 100871, Peoples R China 7.ShanghaiTech Univ, ShanghaiTech Lab Topol Phys, Shanghai 201210, Peoples R China
推荐引用方式 GB/T 7714	Lu, Xin,Zhang, Shihao,Wang, Yaning,et al. Synergistic correlated states and nontrivial topology in coupled graphene-insulator heterostructures[J]. NATURE COMMUNICATIONS,2023,14(1):12.
APA	Lu, Xin.,Zhang, Shihao.,Wang, Yaning.,Gao, Xiang.,Yang, Kaining.,...&Liu, Jianpeng.(2023).Synergistic correlated states and nontrivial topology in coupled graphene-insulator heterostructures.NATURE COMMUNICATIONS,14(1),12.
MLA	Lu, Xin,et al."Synergistic correlated states and nontrivial topology in coupled graphene-insulator heterostructures".NATURE COMMUNICATIONS 14.1(2023):12.