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Topological Dirac line nodes and superconductivity coexist in SnSe at high pressure
Chen, Xuliang1; Lu, Pengchao2; Wang, Xuefei1; Zhou, Yonghui1; An, Chao1; Zhou, Ying1; Xian, Cong1; Gao, Hao2; Guo, Zhaopeng2; Park, Changyong3; Hou, Binyang3; Peng, Kunling4; Zhou, Xiaoyuan4; Sun, Jian2,5; Xiong, Yimin1,5; Yang, Zhaorong1,5,6; Xing, Dingyu2,5; Zhang, Yuheng1,5
2017-10-12
Source PublicationPHYSICAL REVIEW B
Volume96Issue:16Pages:1-6
AbstractWe report on the discovery of a pressure-induced topological and superconducting phase of SnSe, a material which attracts much attention recently due to its superior thermoelectric properties. In situ high-pressure electrical transport and synchrotron x-ray diffraction measurements show that the superconductivity emerges along with the formation of a CsCl-type structural phase of SnSe above around 27 GPa, with amaximum critical temperature of 3.2 K at 39 GPa. Based on ab initio calculations, this CsCl-type SnSe is predicted to be a Dirac line-node (DLN) semimetal in the absence of spin-orbit coupling, whose DLN states are protected by the coexistence of time-reversal and inversion symmetries. These results make CsCl-type SnSe an interesting model platform with simple crystal symmetry to study the interplay of topological physics and superconductivity.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationNational Key Research and Development Program of China(2016YFA0300404 ; NSFC(11574323 ; NSF Anhui Province(1708085QA19) ; NSF Jiangsu Province(BK20150012) ; Fundamental Research Funds for the Central Universities(020414380068/1-1) ; Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund ; Chinese Academy of Science ; DOE-NNSA(DE-NA0001974) ; DOE-BES(DE-FG02-99ER45775) ; NSF ; DOE Office of Science(DE-AC02-06CH11357) ; 2016YFA0401804 ; 11474288 ; 2015CB921202) ; 51472036 ; 51372112 ; 11574133 ; U1632275) ; National Key Research and Development Program of China(2016YFA0300404 ; NSFC(11574323 ; NSF Anhui Province(1708085QA19) ; NSF Jiangsu Province(BK20150012) ; Fundamental Research Funds for the Central Universities(020414380068/1-1) ; Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund ; Chinese Academy of Science ; DOE-NNSA(DE-NA0001974) ; DOE-BES(DE-FG02-99ER45775) ; NSF ; DOE Office of Science(DE-AC02-06CH11357) ; 2016YFA0401804 ; 11474288 ; 2015CB921202) ; 51472036 ; 51372112 ; 11574133 ; U1632275)
DOI10.1103/PhysRevB.96.165123
WOS KeywordIV-VI COMPOUNDS ; MAJORANA FERMIONS ; PHASE-TRANSITION ; CRYSTALS ; TEMPERATURE ; DIFFRACTION ; INSULATOR ; SCHEMES ; BI2SE3 ; ORDER
Indexed BySCI
Language英语
Funding OrganizationNational Key Research and Development Program of China(2016YFA0300404 ; NSFC(11574323 ; NSF Anhui Province(1708085QA19) ; NSF Jiangsu Province(BK20150012) ; Fundamental Research Funds for the Central Universities(020414380068/1-1) ; Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund ; Chinese Academy of Science ; DOE-NNSA(DE-NA0001974) ; DOE-BES(DE-FG02-99ER45775) ; NSF ; DOE Office of Science(DE-AC02-06CH11357) ; 2016YFA0401804 ; 11474288 ; 2015CB921202) ; 51472036 ; 51372112 ; 11574133 ; U1632275) ; National Key Research and Development Program of China(2016YFA0300404 ; NSFC(11574323 ; NSF Anhui Province(1708085QA19) ; NSF Jiangsu Province(BK20150012) ; Fundamental Research Funds for the Central Universities(020414380068/1-1) ; Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund ; Chinese Academy of Science ; DOE-NNSA(DE-NA0001974) ; DOE-BES(DE-FG02-99ER45775) ; NSF ; DOE Office of Science(DE-AC02-06CH11357) ; 2016YFA0401804 ; 11474288 ; 2015CB921202) ; 51472036 ; 51372112 ; 11574133 ; U1632275)
WOS Research AreaPhysics
WOS SubjectPhysics, Condensed Matter
WOS IDWOS:000412837600004
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/33801
Collection中科院强磁场科学中心
Affiliation1.Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme, High Field Magnet Lab, Hefei 230031, Anhui, Peoples R China
2.Nanjing Univ, Sch Phys, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China
3.Carnegie Inst Sci, Geophys Lab, HPCAT, Argonne, IL 60439 USA
4.Chongqing Univ, Coll Phys, Chongqing 401331, Peoples R China
5.Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China
6.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Chen, Xuliang,Lu, Pengchao,Wang, Xuefei,et al. Topological Dirac line nodes and superconductivity coexist in SnSe at high pressure[J]. PHYSICAL REVIEW B,2017,96(16):1-6.
APA Chen, Xuliang.,Lu, Pengchao.,Wang, Xuefei.,Zhou, Yonghui.,An, Chao.,...&Zhang, Yuheng.(2017).Topological Dirac line nodes and superconductivity coexist in SnSe at high pressure.PHYSICAL REVIEW B,96(16),1-6.
MLA Chen, Xuliang,et al."Topological Dirac line nodes and superconductivity coexist in SnSe at high pressure".PHYSICAL REVIEW B 96.16(2017):1-6.
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