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Recipe for generating Weyl semimetals with extended topologically protected features
Wang, R.1,2,3; Zhao, J. Z.1,4; Jin, Y. J.1; Xu, W. P.1; Gan, L. -Y.1,5; Wu, X. Z.1,2,3; Xu, H.1; Tong, S. Y.1,6
Source PublicationPHYSICAL REVIEW B
2017-09-08
DOI10.1103/PhysRevB.96.121104
Volume96Issue:12
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectPhysics, Condensed Matter
WOS Research AreaPhysics
WOS KeywordTOTAL-ENERGY CALCULATIONS ; AUGMENTED-WAVE METHOD ; ELECTRON-GAS ; BASIS-SET ; INSULATORS ; NEUTRINOS ; ABSENCE ; LATTICE ; PROOF
AbstractWe present a recipe that leads to Weyl semimetals with extended topologically protected features. We show that compounds in a family that possess time-reversal symmetry and share a noncentrosymmetric cubic structure with the space group F-43m (no. 216) host robust Weyl fermions with extended and easily measurable protected features. The candidates in this family are compounds with different chemical formulas, AB2, ABC, ABC2, and ABCD, and their Fermi levels are predominantly populated by nontrivial Weyl fermions. Symmetry of the system requires that the Weyl nodes with opposite chirality are well separated in momentum space. Adjacent Weyl points have the same chirality; thus these Weyl nodes would not annihilate each other with respect to lattice perturbations. As Fermi arcs and surface states connect Weyl nodes with opposite chirality, the large separation of the latter in momentum space guarantees the appearance of very long arcs and surface states. This work demonstrates that the use of system symmetry by first-principles calculations is a powerful approach for discovering new Weyl semimetals with attractive features whose protected fermions may be candidates of many applications.
Language英语
WOS IDWOS:000410002000001
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/149895
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.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
5.Southwest Jiaotong Univ, Superconduct & New Energy R&D Ctr, Key Lab Adv Technol Mat, Minist Educ, Chengdu 610031, Sichuan, Peoples R China
6.Chinese Univ Hong Kong Shenzhen, Sch Sci & Engn, Shenzhen 518172, Peoples R China
Recommended Citation
GB/T 7714
Wang, R.,Zhao, J. Z.,Jin, Y. J.,et al. Recipe for generating Weyl semimetals with extended topologically protected features[J]. PHYSICAL REVIEW B,2017,96(12).
APA Wang, R..,Zhao, J. Z..,Jin, Y. J..,Xu, W. P..,Gan, L. -Y..,...&Tong, S. Y..(2017).Recipe for generating Weyl semimetals with extended topologically protected features.PHYSICAL REVIEW B,96(12).
MLA Wang, R.,et al."Recipe for generating Weyl semimetals with extended topologically protected features".PHYSICAL REVIEW B 96.12(2017).
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