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Multiple Dirac nodal lines in an in-plane anisotropic semimetal
Hao, Zhanyang1; Chen, Weizhao1; Wang, Yuan1; Li, Jiayu1; Ma, Xiao Ming1; Hao, Yu Jie1; Lu, Ruie1; Shen, Zecheng1; Jiang, Zhicheng2,3; Liu, Wanling2; Jiang, Qi2; Yang, Yichen2; Lei, Xiao1,4; Wang, Le1; Fu, Ying1,5; Zhou, Liang1; Huang, Lianglong1; Liu, Zhengtai2; Ye, Mao2; Shen, Dawei2; Mei, Jiawei1; He, Hongtao1; Liu, Cai1; Deng, Ke1; Liu, Chang1; Liu, Qihang1,6,7; Chen, Chaoyu1
2021-09-15
Source PublicationPhysical Review B
ISSN2469-9950
Volume104Issue:11
Abstract

Nodal-line semimetals (NLSMs) contain Dirac-Weyl-type band-crossing nodes extending into shapes of lines, loops, and chains in the reciprocal space, leading to band topology and transport responses. Robust NLSMs against spin-orbit coupling typically occur in three-dimensional and in-plane isotropic materials which have more symmetry operations to protect the line nodes of band crossing, while the possibilities in exfoliatable materials with in-plane anisotropy are rarely discussed. Here, we demonstrate a robust NLSM phase in an exfoliatable in-plane anisotropic nonmagnetic semimetal . Combining angle-resolved photoemission spectroscopy measurements and first-principles calculations, we reveal multiple Dirac-type nodal lines with fourfold degeneracy in . Our findings suggest rich physics in structurally anisotropic topological materials and call for further functional exploitation based on them.

DOI10.1103/PhysRevB.104.115158
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000704416400004
Scopus ID2-s2.0-85115886703
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Cited Times [WOS]:3   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorLiu, Qihang
Affiliation1.Shenzhen Institute for Quantum Science and Engineering (SIQSE), Department of Physics, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
2.State Key Laboratory of Functional Materials for Informatics, Center for Excellence in Superconducting Electronics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
3.Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
4.Department of Physics, Hong Kong University of Science and Technology, Hong Kong, Clear Water Bay, Hong Kong
5.Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade Taipa, 999078, Macao
6.Guangdong Provincial Key Laboratory for Computational Science and Material Design, Southern University of Science and Technology, Shenzhen, 518055, China
7.Shenzhen Key Laboratory of Advanced Quantum Functional Materials and Devices, Southern University of Science and Technology, Shenzhen, 518055, China
Recommended Citation
GB/T 7714
Hao, Zhanyang,Chen, Weizhao,Wang, Yuan,et al. Multiple Dirac nodal lines in an in-plane anisotropic semimetal[J]. Physical Review B,2021,104(11).
APA Hao, Zhanyang.,Chen, Weizhao.,Wang, Yuan.,Li, Jiayu.,Ma, Xiao Ming.,Hao, Yu Jie.,Lu, Ruie.,Shen, Zecheng.,Jiang, Zhicheng.,Liu, Wanling.,Jiang, Qi.,Yang, Yichen.,Lei, Xiao.,Wang, Le.,Fu, Ying.,Zhou, Liang.,Huang, Lianglong.,Liu, Zhengtai.,Ye, Mao.,...&Chen, Chaoyu.(2021).Multiple Dirac nodal lines in an in-plane anisotropic semimetal.Physical Review B,104(11).
MLA Hao, Zhanyang,et al."Multiple Dirac nodal lines in an in-plane anisotropic semimetal".Physical Review B 104.11(2021).
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