Title | Two-dimensional antiferromagnetic nodal-line semimetal and quantum anomalous Hall state in the van der Waals heterostructure germanene/Mn2S2 |
Author | |
Corresponding Author | Yu,Xiang Long; Wu,Jiansheng |
Publication Years | 2022-12-14
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DOI | |
Source Title | |
ISSN | 0953-8984
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EISSN | 1361-648X
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Volume | 34Issue:50 |
Abstract | Materials with interactions between the topology and magnetism are triggering increasing interest. We constructed a two-dimensional (2D) van der Waals heterostructure germanene/MnS, where the germanene is a quantum spin Hall insulator and MnS provides antiferromagnetic (AFM) interactions. In this structure, a 2D AFM nodal-line semimetal (NLSM) phase is expected without the spin-orbit coupling (SOC), which is of a high density of states around the Fermi level. The band touching rings originate from the intersection between different spin components of p orbitals of germanene. This result provides a possible 2D realization of NLSMs, which are usually realized in three-dimensional systems. When the SOC is present, a quantum anomalous Hall (QAH) state emerges with the annihilation of the band-touching rings. The nontrivial topology is determined by calculating the Chern number and Wannier charge centers. This provides an alternative platform to realize QAH states. These results could also provide the possibility of further understanding the topological states in NLSM and electronic applications. |
Keywords | |
URL | [Source Record] |
Indexed By | |
Language | English
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SUSTech Authorship | Corresponding
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Funding Project | National Natural Science Foundation of China[
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WOS Research Area | Physics
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WOS Subject | Physics, Condensed Matter
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WOS Accession No | WOS:000877316300001
|
Publisher | |
EI Accession Number | 20224613123746
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EI Keywords | Annihilation
; Antiferromagnetism
; Quantum Theory
; Topology
; Van Der Waals Forces
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ESI Classification Code | Magnetism: Basic Concepts And Phenomena:701.2
; Physical Chemistry:801.4
; Combinatorial Mathematics, Includes Graph Theory, Set Theory:921.4
; Atomic And Molecular Physics:931.3
; Quantum Theory
; Quantum Mechanics:931.4
; High Energy Physics:932.1
|
ESI Research Field | PHYSICS
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Scopus EID | 2-s2.0-85141866941
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Data Source | Scopus
|
Citation statistics |
Cited Times [WOS]:0
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Document Type | Journal Article |
Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/411758 |
Department | Department of Physics 量子科学与工程研究院 |
Affiliation | 1.Department of Physics,Harbin Institute of Technology,Harbin,150001,China 2.Department of Physics,Southern University of Science and Technology,Shenzhen,518055,China 3.Shenzhen Institute for Quantum Science and Engineering (SIQSE),Southern University of Science and Technology,Shenzhen,518055,China 4.International Quantum Academy,Shenzhen,518048,China 5.Key Laboratory of Carbon Nanomaterials,Nano Innovation Institute (NII),College of Chemistry and Materials Science,Inner Mongolia Minzu University,Tongliao,028000,China |
First Author Affilication | Department of Physics; Institute for Quantum Science and Engineering |
Corresponding Author Affilication | Department of Physics; Institute for Quantum Science and Engineering |
Recommended Citation GB/T 7714 |
Lv,Qianqian,Fu,Pei Hao,Zhuang,Quan,et al. Two-dimensional antiferromagnetic nodal-line semimetal and quantum anomalous Hall state in the van der Waals heterostructure germanene/Mn2S2[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2022,34(50).
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APA |
Lv,Qianqian,Fu,Pei Hao,Zhuang,Quan,Yu,Xiang Long,&Wu,Jiansheng.(2022).Two-dimensional antiferromagnetic nodal-line semimetal and quantum anomalous Hall state in the van der Waals heterostructure germanene/Mn2S2.JOURNAL OF PHYSICS-CONDENSED MATTER,34(50).
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MLA |
Lv,Qianqian,et al."Two-dimensional antiferromagnetic nodal-line semimetal and quantum anomalous Hall state in the van der Waals heterostructure germanene/Mn2S2".JOURNAL OF PHYSICS-CONDENSED MATTER 34.50(2022).
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