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Magnetic-tunnelling-induced Weyl node annihilation in TaP
Zhang, Cheng-Long1; Xu, Su-Yang2; Wang, C. M.3,4,5; Lin, Ziquan6; Du, Z. Z.3,4,7; Guo, Cheng1; Lee, Chi-Cheng8,9,10; Lu, Hong1; Feng, Yiyang1; Huang, Shin-Ming8,9,10,11; Chang, Guoqing8,9,10; Hsu, Chuang-Han8,9,10; Liu, Haiwen1; Lin, Hsin8,9,10; Li, Liang; Zhang, Chi1,12; Zhang, Jinglei13; Xie, Xin-Cheng1,12; Neupert, Titus14; Hasan, M. Zahid2; Lu, Hai-Zhou3,4; Wang, Junfeng6; Jia, Shuang1,12
2017-10-01
发表期刊NATURE PHYSICS
卷号13期号:10页码:979-+
摘要Weyl nodes are topological objects in three-dimensional metals. Whereas the energy of the lowest Landau band of a conventional Fermi pocket increases with magnetic field due to the zero-point energy (1/2 h omega), the lowest Landau band of Weyl cones stays at zero energy unless a strong magnetic field couples Weyl fermions of opposite chirality. In the Weyl semimetal TaP, which possesses two types of Weyl nodes (four pairs of W1 and eight pairs of W2 nodes), we observed such a magnetic coupling between the electron pockets arising from the W1 Weyl fermions. As a result, their lowest Landau bands move above the chemical potential, leading to a sharp sign reversal in the Hall resistivity at a specific magnetic field corresponding to the separation in momentum space of the W1 Weyl nodes, root(eB/h) similar to Delta k(W1). By contrast, annihilation is not observed for the hole pocket because the separation of the W2 Weyl nodes is much larger. These findings reveal the nontrivial topology of Weyl fermions in high-field transport measurements and demonstrate the observation of Weyl node annihilation, which is a unique topological phenomenon associated with Weyl fermions.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
资助者National Basic Research Program of China(2014CB239302 ; National Basic Research Program of China(2014CB239302 ; Opening Project of Wuhan National High Magnetic Field Center(PHMFF2015395) ; Opening Project of Wuhan National High Magnetic Field Center(PHMFF2015395) ; Huazhong University of Science and Technology ; Huazhong University of Science and Technology ; Singapore National Research Foundation under NRF(NRF-NRFF2013-03) ; Singapore National Research Foundation under NRF(NRF-NRFF2013-03) ; Ministry of Science and Technology in Taiwan(MOST105-2112-M-110-014-MY3) ; Ministry of Science and Technology in Taiwan(MOST105-2112-M-110-014-MY3) ; National Natural Science Foundation of China(11474005 ; National Natural Science Foundation of China(11474005 ; Guangdong Innovative and Entrepreneurial Research Team Program(2016ZT06D348) ; Guangdong Innovative and Entrepreneurial Research Team Program(2016ZT06D348) ; National Key RD Program(2016YFA0301700) ; National Key RD Program(2016YFA0301700) ; National Science Foundation, Division of Materials Research(NSF-DMR-1507585 ; National Science Foundation, Division of Materials Research(NSF-DMR-1507585 ; Gordon and Betty Moore Foundation(GBMF4547) ; Gordon and Betty Moore Foundation(GBMF4547) ; National Science Foundation(DMR-1157490) ; National Science Foundation(DMR-1157490) ; State of Florida ; State of Florida ; US Department of Energy ; US Department of Energy ; DOE ; DOE ; DOE/Office of Science Project Complex Electronic Materials ; DOE/Office of Science Project Complex Electronic Materials ; 2013CB921901) ; 2013CB921901) ; 11574127) ; 11574127) ; NSF-DMR-1006492) ; NSF-DMR-1006492) ; National Basic Research Program of China(2014CB239302 ; National Basic Research Program of China(2014CB239302 ; Opening Project of Wuhan National High Magnetic Field Center(PHMFF2015395) ; Opening Project of Wuhan National High Magnetic Field Center(PHMFF2015395) ; Huazhong University of Science and Technology ; Huazhong University of Science and Technology ; Singapore National Research Foundation under NRF(NRF-NRFF2013-03) ; Singapore National Research Foundation under NRF(NRF-NRFF2013-03) ; Ministry of Science and Technology in Taiwan(MOST105-2112-M-110-014-MY3) ; Ministry of Science and Technology in Taiwan(MOST105-2112-M-110-014-MY3) ; National Natural Science Foundation of China(11474005 ; National Natural Science Foundation of China(11474005 ; Guangdong Innovative and Entrepreneurial Research Team Program(2016ZT06D348) ; Guangdong Innovative and Entrepreneurial Research Team Program(2016ZT06D348) ; National Key RD Program(2016YFA0301700) ; National Key RD Program(2016YFA0301700) ; National Science Foundation, Division of Materials Research(NSF-DMR-1507585 ; National Science Foundation, Division of Materials Research(NSF-DMR-1507585 ; Gordon and Betty Moore Foundation(GBMF4547) ; Gordon and Betty Moore Foundation(GBMF4547) ; National Science Foundation(DMR-1157490) ; National Science Foundation(DMR-1157490) ; State of Florida ; State of Florida ; US Department of Energy ; US Department of Energy ; DOE ; DOE ; DOE/Office of Science Project Complex Electronic Materials ; DOE/Office of Science Project Complex Electronic Materials ; 2013CB921901) ; 2013CB921901) ; 11574127) ; 11574127) ; NSF-DMR-1006492) ; NSF-DMR-1006492)
DOI10.1038/NPHYS4183
关键词[WOS]FERMI ARCS ; MAGNETORESISTANCE ; DISCOVERY ; BREAKDOWN ; ELECTRON ; CRYSTALS ; BISMUTH
收录类别SCI
语种英语
资助者National Basic Research Program of China(2014CB239302 ; National Basic Research Program of China(2014CB239302 ; Opening Project of Wuhan National High Magnetic Field Center(PHMFF2015395) ; Opening Project of Wuhan National High Magnetic Field Center(PHMFF2015395) ; Huazhong University of Science and Technology ; Huazhong University of Science and Technology ; Singapore National Research Foundation under NRF(NRF-NRFF2013-03) ; Singapore National Research Foundation under NRF(NRF-NRFF2013-03) ; Ministry of Science and Technology in Taiwan(MOST105-2112-M-110-014-MY3) ; Ministry of Science and Technology in Taiwan(MOST105-2112-M-110-014-MY3) ; National Natural Science Foundation of China(11474005 ; National Natural Science Foundation of China(11474005 ; Guangdong Innovative and Entrepreneurial Research Team Program(2016ZT06D348) ; Guangdong Innovative and Entrepreneurial Research Team Program(2016ZT06D348) ; National Key RD Program(2016YFA0301700) ; National Key RD Program(2016YFA0301700) ; National Science Foundation, Division of Materials Research(NSF-DMR-1507585 ; National Science Foundation, Division of Materials Research(NSF-DMR-1507585 ; Gordon and Betty Moore Foundation(GBMF4547) ; Gordon and Betty Moore Foundation(GBMF4547) ; National Science Foundation(DMR-1157490) ; National Science Foundation(DMR-1157490) ; State of Florida ; State of Florida ; US Department of Energy ; US Department of Energy ; DOE ; DOE ; DOE/Office of Science Project Complex Electronic Materials ; DOE/Office of Science Project Complex Electronic Materials ; 2013CB921901) ; 2013CB921901) ; 11574127) ; 11574127) ; NSF-DMR-1006492) ; NSF-DMR-1006492) ; National Basic Research Program of China(2014CB239302 ; National Basic Research Program of China(2014CB239302 ; Opening Project of Wuhan National High Magnetic Field Center(PHMFF2015395) ; Opening Project of Wuhan National High Magnetic Field Center(PHMFF2015395) ; Huazhong University of Science and Technology ; Huazhong University of Science and Technology ; Singapore National Research Foundation under NRF(NRF-NRFF2013-03) ; Singapore National Research Foundation under NRF(NRF-NRFF2013-03) ; Ministry of Science and Technology in Taiwan(MOST105-2112-M-110-014-MY3) ; Ministry of Science and Technology in Taiwan(MOST105-2112-M-110-014-MY3) ; National Natural Science Foundation of China(11474005 ; National Natural Science Foundation of China(11474005 ; Guangdong Innovative and Entrepreneurial Research Team Program(2016ZT06D348) ; Guangdong Innovative and Entrepreneurial Research Team Program(2016ZT06D348) ; National Key RD Program(2016YFA0301700) ; National Key RD Program(2016YFA0301700) ; National Science Foundation, Division of Materials Research(NSF-DMR-1507585 ; National Science Foundation, Division of Materials Research(NSF-DMR-1507585 ; Gordon and Betty Moore Foundation(GBMF4547) ; Gordon and Betty Moore Foundation(GBMF4547) ; National Science Foundation(DMR-1157490) ; National Science Foundation(DMR-1157490) ; State of Florida ; State of Florida ; US Department of Energy ; US Department of Energy ; DOE ; DOE ; DOE/Office of Science Project Complex Electronic Materials ; DOE/Office of Science Project Complex Electronic Materials ; 2013CB921901) ; 2013CB921901) ; 11574127) ; 11574127) ; NSF-DMR-1006492) ; NSF-DMR-1006492)
WOS研究方向Physics
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000412181200019
引用统计
文献类型期刊论文
条目标识符http://ir.hfcas.ac.cn:8080/handle/334002/33723
专题中科院强磁场科学中心
作者单位1.Peking Univ, Sch Phys, Int Ctr Quantum Mat, Beijing 100871, Peoples R China
2.Princeton Univ, Dept Phys, Lab Topol Quantum Matter & Spect B7, Princeton, NJ 08544 USA
3.South Univ Sci & Technol China, Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China
4.South Univ Sci & Technol China, Dept Phys, Shenzhen 518055, Peoples R China
5.Anyang Normal Univ, Sch Phys & Elect Engn, Anyang 455000, Peoples R China
6.Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Hubei, Peoples R China
7.Southeast Univ, Sch Phys, Nanjing 211189, Jiangsu, Peoples R China
8.Natl Univ Singapore, Ctr Adv Mat 2D, 6 Sci Dr 2, Singapore 117546, Singapore
9.Natl Univ Singapore, Graphene Res Ctr, 6 Sci Dr 2, Singapore 117546, Singapore
10.Natl Univ Singapore, Dept Phys, 2 Sci Dr 3, Singapore 117542, Singapore
11.Natl Sun Yat Sen Univ, Dept Phys, Kaohsiung 804, Taiwan
12.Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China
13.Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme, High Field Magnet Lab, Hefei 230031, Anhui, Peoples R China
14.Univ Zurich, Dept Phys, Winterthurerstr 190, CH-8052 Zurich, Switzerland
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Zhang, Cheng-Long,Xu, Su-Yang,Wang, C. M.,et al. Magnetic-tunnelling-induced Weyl node annihilation in TaP[J]. NATURE PHYSICS,2017,13(10):979-+.
APA Zhang, Cheng-Long.,Xu, Su-Yang.,Wang, C. M..,Lin, Ziquan.,Du, Z. Z..,...&Jia, Shuang.(2017).Magnetic-tunnelling-induced Weyl node annihilation in TaP.NATURE PHYSICS,13(10),979-+.
MLA Zhang, Cheng-Long,et al."Magnetic-tunnelling-induced Weyl node annihilation in TaP".NATURE PHYSICS 13.10(2017):979-+.
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