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Field-induced topological phase transition from a three-dimensional Weyl semimetal to a two-dimensional massive Dirac metal in ZrTe5
Zheng, Guolin1; Zhu, Xiangde1; Liu, Yequn2; Lu, Jianwei1,3; Ning, Wei1; Zhang, Hongwei1,3; Gao, Wenshuai1,3; Han, Yuyan1; Yang, Jiyong1; Du, Haifeng1,4; Yang, Kun5; Zhang, Yuheng1,3,6; Tian, Mingliang1,4,6
2017-09-01
Source PublicationPHYSICAL REVIEW B
Volume96Issue:12
AbstractSymmetry protected Dirac semimetals can be transformed into Weyl semimetals by breaking the protecting symmetry, leading to many exotic quantum phenomena such as chiral anomaly and anomalous Hall effect. Here we show that, due to the large Zeeman g factor and small bandwidth along the b axis in Dirac semimetal ZrTe5, a magnetic field of about 8 T along the b-axis direction may annihilate the Weyl points and open up a two-dimensional (2D) Dirac mass gap, when the Zeeman splitting exceeds the bandwidth along the b axis. This is manifested by a sharp drop of magnetoresistance (MR) above 8 T, which is probably due to additional carriers induced by the orbital splitting of the zeroth Landau level associated with the 2D Dirac point, which is a descendant of the original Weyl points. Further evidence of the additional carriers is provided by the Hall effect and different anisotropic magnetoresistance in low and high field regions. Our experiment reveals a probable topological quantum phase transition of field-induced Weyl points annihilation in Dirac semimetal ZrTe5 and gives an alternative explanation for the drop of MR at high field.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationNational Key Research and Development Program of China(2016YFA0401003 ; National Key Research and Development Program of China(2016YFA0401003 ; Natural Science Foundation of China(11174294 ; Natural Science Foundation of China(11174294 ; National Science Foundation of USA(DMR-1442366 ; National Science Foundation of USA(DMR-1442366 ; CAS/SAFEA international partnership program for creative research teams of China ; CAS/SAFEA international partnership program for creative research teams of China ; 2017YFA0303201) ; 2017YFA0303201) ; 11574320 ; 11574320 ; DMR-1157490) ; DMR-1157490) ; 11374302 ; 11374302 ; 11204312 ; 11204312 ; 11474289 ; 11474289 ; U1432251) ; U1432251) ; National Key Research and Development Program of China(2016YFA0401003 ; National Key Research and Development Program of China(2016YFA0401003 ; Natural Science Foundation of China(11174294 ; Natural Science Foundation of China(11174294 ; National Science Foundation of USA(DMR-1442366 ; National Science Foundation of USA(DMR-1442366 ; CAS/SAFEA international partnership program for creative research teams of China ; CAS/SAFEA international partnership program for creative research teams of China ; 2017YFA0303201) ; 2017YFA0303201) ; 11574320 ; 11574320 ; DMR-1157490) ; DMR-1157490) ; 11374302 ; 11374302 ; 11204312 ; 11204312 ; 11474289 ; 11474289 ; U1432251) ; U1432251)
DOI10.1103/PhysRevB.96.121401
WOS KeywordNEGATIVE MAGNETORESISTANCE ; MONOLAYER WSE2 ; CD3AS2 ; HFTE5
Indexed BySCI
Language英语
Funding OrganizationNational Key Research and Development Program of China(2016YFA0401003 ; National Key Research and Development Program of China(2016YFA0401003 ; Natural Science Foundation of China(11174294 ; Natural Science Foundation of China(11174294 ; National Science Foundation of USA(DMR-1442366 ; National Science Foundation of USA(DMR-1442366 ; CAS/SAFEA international partnership program for creative research teams of China ; CAS/SAFEA international partnership program for creative research teams of China ; 2017YFA0303201) ; 2017YFA0303201) ; 11574320 ; 11574320 ; DMR-1157490) ; DMR-1157490) ; 11374302 ; 11374302 ; 11204312 ; 11204312 ; 11474289 ; 11474289 ; U1432251) ; U1432251) ; National Key Research and Development Program of China(2016YFA0401003 ; National Key Research and Development Program of China(2016YFA0401003 ; Natural Science Foundation of China(11174294 ; Natural Science Foundation of China(11174294 ; National Science Foundation of USA(DMR-1442366 ; National Science Foundation of USA(DMR-1442366 ; CAS/SAFEA international partnership program for creative research teams of China ; CAS/SAFEA international partnership program for creative research teams of China ; 2017YFA0303201) ; 2017YFA0303201) ; 11574320 ; 11574320 ; DMR-1157490) ; DMR-1157490) ; 11374302 ; 11374302 ; 11204312 ; 11204312 ; 11474289 ; 11474289 ; U1432251) ; U1432251)
WOS Research AreaPhysics
WOS SubjectPhysics, Condensed Matter
WOS IDWOS:000408826800003
Citation statistics
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/33658
Collection中科院强磁场科学中心
Affiliation1.Chinese Acad Sci, High Field Magnet Lab, Anhui Prov Key Lab Condensed Matter Phys Extreme, Hefei 230031, Anhui, Peoples R China
2.Chinese Acad Sci, Analyt Instrumentat Ctr, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi, Peoples R China
3.Univ Sci & Technol China, Dept Phys, Hefei 230026, Peoples R China
4.Anhui Univ, Dept Phys, Coll Phys & Mat Sci, Hefei 230601, Anhui, Peoples R China
5.Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32306 USA
6.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Zheng, Guolin,Zhu, Xiangde,Liu, Yequn,et al. Field-induced topological phase transition from a three-dimensional Weyl semimetal to a two-dimensional massive Dirac metal in ZrTe5[J]. PHYSICAL REVIEW B,2017,96(12).
APA Zheng, Guolin.,Zhu, Xiangde.,Liu, Yequn.,Lu, Jianwei.,Ning, Wei.,...&Tian, Mingliang.(2017).Field-induced topological phase transition from a three-dimensional Weyl semimetal to a two-dimensional massive Dirac metal in ZrTe5.PHYSICAL REVIEW B,96(12).
MLA Zheng, Guolin,et al."Field-induced topological phase transition from a three-dimensional Weyl semimetal to a two-dimensional massive Dirac metal in ZrTe5".PHYSICAL REVIEW B 96.12(2017).
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