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Evolution of Weyl orbit and quantum Hall effect in Dirac semimetal Cd3As2

文献类型：期刊论文

作者Zhang, Cheng1,2,3; Narayan, Awadhesh4,5,6; Lu, Shiheng1,2,3; Zhang, Jinglei7; Zhang, Huiqin1,2,3; Ni, Zhuoliang1,2,3; Yuan, Xiang1,2,3; Liu, Yanwen1,2,3; Park, Ju-Hyun8; Zhang, Enze1,2,3
刊名NATURE COMMUNICATIONS
出版日期2017-11-02
卷号8页码:8
ISSN号2041-1723
DOI10.1038/s41467-017-01438-y
通讯作者Xiu, Faxian(Faxian@fudan.edu.cn)
英文摘要Owing to the coupling between open Fermi arcs on opposite surfaces, topological Dirac semimetals exhibit a new type of cyclotron orbit in the surface states known as Weyl orbit. Here, by lowering the carrier density in Cd3As2 nanoplates, we observe a crossover from multiple-frequency to single-frequency Shubnikov-de Haas (SdH) oscillations when subjected to out-of-plane magnetic field, indicating the dominant role of surface transport. With the increase of magnetic field, the SdH oscillations further develop into quantum Hall state with non-vanishing longitudinal resistance. By tracking the oscillation frequency and Hall plateau, we observe a Zeeman-related splitting and extract the Landau level index as well as sub-band number. Different from conventional two-dimensional systems, this unique quantum Hall effect may be related to the quantized version of Weyl orbits. Our results call for further investigations into the exotic quantum Hall states in the low-dimensional structure of topological semimetals.
WOS关键词SURFACE FERMI ARCS ; QUASI-PARTICLE INTERFERENCE ; TOPOLOGICAL INSULATOR ; OSCILLATIONS ; DISCOVERY ; TRANSPORT
资助项目National Key Research and Development Program of China[2017YFA0303302] ; National Natural Science Foundation of China[61322407] ; National Natural Science Foundation of China[11474058] ; National Natural Science Foundation of China[61674040] ; National Science Foundation[DMR-1157490] ; State of Florida ; Science Foundation of Ireland[14/IA/2624]
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000414245600003
出版者NATURE PUBLISHING GROUP
资助机构National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 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源URL[http://ir.hfcas.ac.cn:8080/handle/334002/35721]  
专题合肥物质科学研究院_中科院强磁场科学中心
通讯作者Xiu, Faxian
作者单位1.Fudan Univ, State Key Lab Surface Phys, Shanghai 200433, Peoples R China
2.Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
3.Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China
4.Trinity Coll Dublin, Sch Phys, CRANN, Dublin 2, Ireland
5.Trinity Coll Dublin, AMBER, Dublin 2, Ireland
6.Univ Illinois, Dept Phys, Champaign, IL 61801 USA
7.Chinese Acad Sci, High Magnet Field Lab, Hefei 230031, Anhui, Peoples R China
8.Natl High Magnet Field Lab, Tallahassee, FL 32310 USA
9.Fudan Univ, Inst Nanoelect Devices & Quantum Comp, Shanghai 200433, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Cheng,Narayan, Awadhesh,Lu, Shiheng,et al. Evolution of Weyl orbit and quantum Hall effect in Dirac semimetal Cd3As2[J]. NATURE COMMUNICATIONS,2017,8:8.
APA Zhang, Cheng.,Narayan, Awadhesh.,Lu, Shiheng.,Zhang, Jinglei.,Zhang, Huiqin.,...&Xiu, Faxian.(2017).Evolution of Weyl orbit and quantum Hall effect in Dirac semimetal Cd3As2.NATURE COMMUNICATIONS,8,8.
MLA Zhang, Cheng,et al."Evolution of Weyl orbit and quantum Hall effect in Dirac semimetal Cd3As2".NATURE COMMUNICATIONS 8(2017):8.

入库方式： OAI收割

来源：合肥物质科学研究院

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