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Ferromagnetic Weyl semimetal phase in a tetragonal structure
Jin, Y. J.1; Wang, R.1,2,3; Chen, Z. J.1,4; Zhao, J. Z.1,5; Zhao, Y. J.4; Xu, H.1
Source PublicationPHYSICAL REVIEW B
2017-11-02
DOI10.1103/PhysRevB.96.201102
Volume96Issue:20
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectPhysics, Condensed Matter
WOS Research AreaPhysics
WOS KeywordTOTAL-ENERGY CALCULATIONS ; AUGMENTED-WAVE METHOD ; TOPOLOGICAL INSULATOR ; ELECTRON-GAS ; BASIS-SET ; STATE
AbstractMagnetic topological semimetals have drawn significant interest since they can combine band topology with intrinsic magnetic order. Here, we propose that ideal Weyl semimetal features can coexist with a ferromagnetic (FM) ground state in a class of compounds with centrosymmetric tetragonal structures. In this magnetic system with inversion symmetry, the direction of magnetization is able to manipulate the symmetry protected band structures from a node-line type to a Weyl one in the presence of spin-orbital coupling. The FM node-line semimetal phase is protected by mirror symmetry with the reflection-invariant plane perpendicular to the magnetic order. Within mirror symmetry breaking due to magnetization along other directions, the gapless node-line loop will degenerate to only one pair of Weyl points protected by rotational symmetry along the magnetic axis, which is largely separated in momentum space. Such a FM Weyl semimetal phase offers a nice platform with a minimum number of Weyl points in a condensed matter system. These findings provide several realistic candidates for the investigation of topological semimetals with time-reversal symmetry breaking, especially demonstrating the use of system symmetry as a powerful recipe for discovering FM Weyl semimetals with attractive features.
Language英语
WOS IDWOS:000414318000001
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Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/149715
Collection中国科学院大连化学物理研究所
Affiliation1.South Univ Sci & Technol China, Dept Phys, Shenzhen 518055, Peoples R China
2.Chongqing Univ, Inst Struct & Funct, Chongqing 400044, Peoples R China
3.Chongqing Univ, Dept Phys, Chongqing 400044, Peoples R China
4.South China Univ Technol, Dept Phys, Guangzhou 510640, Guangdong, Peoples R China
5.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Jin, Y. J.,Wang, R.,Chen, Z. J.,et al. Ferromagnetic Weyl semimetal phase in a tetragonal structure[J]. PHYSICAL REVIEW B,2017,96(20).
APA Jin, Y. J.,Wang, R.,Chen, Z. J.,Zhao, J. Z.,Zhao, Y. J.,&Xu, H..(2017).Ferromagnetic Weyl semimetal phase in a tetragonal structure.PHYSICAL REVIEW B,96(20).
MLA Jin, Y. J.,et al."Ferromagnetic Weyl semimetal phase in a tetragonal structure".PHYSICAL REVIEW B 96.20(2017).
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