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Extremely Large Magnetoresistance in a Topological Semimetal Candidate Pyrite PtBi2

文献类型：期刊论文

作者Gao, Wenshuai1,2; Hao, Ningning1; Zheng, Fa-Wei3; Ning, Wei1; Wu, Min1,2; Zhu, Xiangde1; Zheng, Guolin1,2; Zhang, Jinglei1; Lu, Jianwei1,2; Zhang, Hongwei1,2
刊名PHYSICAL REVIEW LETTERS
出版日期2017-06-23
卷号118期号:25页码:1-18
DOI10.1103/PhysRevLett.118.256601
文献子类Article
英文摘要While pyrite-type PtBi2 with a face-centered cubic structure has been predicted to be a three-dimensional (3D) Dirac semimetal, experimental study of its physical properties remains absent. Here we report the angular-dependent magnetoresistance measurements of a PtBi2 single crystal under high magnetic fields. We observed extremely large unsaturated magnetoresistance (XMR) up to (11.2x10(6)) % at T = 1.8 K in a magnetic field of 33 T, which is comparable to the previously reported Dirac materials, such as WTe2, LaSb, and NbP. The crystals exhibit an ultrahigh mobility and significant Shubnikov-de Hass quantum oscillations with a nontrivial Berry phase. The analysis of Hall resistivity indicates that the XMR can be ascribed to the nearly compensated electron and hole. Our experimental results associated with the ab initio calculations suggest that pyrite PtBi2 is a topological semimetal candidate that might provide a platform for exploring topological materials with XMR in noble metal alloys.
WOS关键词DIRAC SEMIMETAL ; ULTRAHIGH MOBILITY ; FERMI ARCS ; DISCOVERY ; CD3AS2 ; PHASE ; TAAS
WOS研究方向Physics
语种英语
WOS记录号WOS:000404004200010
资助机构Natural Science Foundation of China(11574320 ; Natural Science Foundation of China(11574320 ; Natural Science Foundation of China(11574320 ; Natural Science Foundation of China(11574320 ; Natural Science Foundation of China(11574320 ; Natural Science Foundation of China(11574320 ; Natural Science Foundation of China(11574320 ; Natural Science Foundation of China(11574320 ; Natural Science Foundation of China(11574320 ; Natural Science Foundation of China(11574320 ; Natural Science Foundation of China(11574320 ; Natural Science Foundation of China(11574320 ; Natural Science Foundation of China(11574320 ; Natural Science Foundation of China(11574320 ; Natural Science Foundation of China(11574320 ; Natural Science Foundation of China(11574320 ; National Key Research and Development Program of China(2016YFA0401003) ; National Key Research and Development Program of China(2016YFA0401003) ; National Key Research and Development Program of China(2016YFA0401003) ; National Key Research and Development Program of China(2016YFA0401003) ; National Key Research and Development Program of China(2016YFA0401003) ; National Key Research and Development Program of China(2016YFA0401003) ; National Key Research and Development Program of China(2016YFA0401003) ; National Key Research and Development Program of China(2016YFA0401003) ; National Key Research and Development Program of China(2016YFA0401003) ; National Key Research and Development Program of China(2016YFA0401003) ; National Key Research and Development Program of China(2016YFA0401003) ; National Key Research and Development Program of China(2016YFA0401003) ; National Key Research and Development Program of China(2016YFA0401003) ; National Key Research and Development Program of China(2016YFA0401003) ; National Key Research and Development Program of China(2016YFA0401003) ; National Key Research and Development Program of China(2016YFA0401003) ; 100 Talents Program of Chinese Academy of Sciences (CAS) ; 100 Talents Program of Chinese Academy of Sciences (CAS) ; 100 Talents Program of Chinese Academy of Sciences (CAS) ; 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源URL[http://ir.hfcas.ac.cn:8080/handle/334002/31988]  
专题合肥物质科学研究院_中科院强磁场科学中心
作者单位1.Chinese Acad Sci, High Field Magnet Lab, Anhui Prov Key Lab Condensed Matter Phys Extreme, Hefei 230031, Anhui, Peoples R China
2.Univ Sci & Technol China, Dept Phys, Hefei 230026, Peoples R China
3.Inst Appl Phys & Computat Math, Beijing 100088, Peoples R China
4.Beijing Computat Sci Res Ctr, Beijing 100193, Peoples R China
5.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714		 Gao, Wenshuai,Hao, Ningning,Zheng, Fa-Wei,et al. Extremely Large Magnetoresistance in a Topological Semimetal Candidate Pyrite PtBi2[J]. PHYSICAL REVIEW LETTERS,2017,118(25):1-18.
APA Gao, Wenshuai.,Hao, Ningning.,Zheng, Fa-Wei.,Ning, Wei.,Wu, Min.,...&Tian, Mingliang.(2017).Extremely Large Magnetoresistance in a Topological Semimetal Candidate Pyrite PtBi2.PHYSICAL REVIEW LETTERS,118(25),1-18.
MLA Gao, Wenshuai,et al."Extremely Large Magnetoresistance in a Topological Semimetal Candidate Pyrite PtBi2".PHYSICAL REVIEW LETTERS 118.25(2017):1-18.

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来源：合肥物质科学研究院

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