Drive the Dirac electrons into Cooper pairs in SrxBi2Se3

doi:10.1038/ncomms14466

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院强磁场科学中心

	Drive the Dirac electrons into Cooper pairs in SrxBi2Se3
	Du, Guan 1,2; Shao, Jifeng 3,4; Yang, Xiong 1,2; Du, Zengyi 1,2; Fang, Delong 1,2; Wang, Jinghui 1,2; Ran, Kejing 1,2; Wen, Jinsheng 1,2,5; Zhang, Changjin 3,4,5; Yang, Huan 1,2,5
刊名	NATURE COMMUNICATIONS
	2017-02-15
卷号	8 期号:无页码:1-9
DOI	10.1038/ncomms14466
文献子类	Article
英文摘要	Topological superconductors are a very interesting and frontier topic in condensed matter physics. Despite the tremendous efforts in exploring topological superconductivity, its presence is however still under heavy debate. The Dirac electrons have been proven to exist on the surface of a topological insulator. It remains unclear whether and how the Dirac electrons fall into Cooper pairing in an intrinsic superconductor with the topological surface states. Here we show the systematic study of scanning tunnelling microscope/spectroscopy on the possible topological superconductor SrxBi2Se3. We first demonstrate that only the intercalated Sr atoms can induce superconductivity. Then we show the full superconducting gaps without any in-gap density of states as expected theoretically for a bulk topological superconductor. Finally, we find that the surface Dirac electrons will simultaneously condense into the superconducting state within the superconducting gap. This vividly demonstrates how the surface Dirac electrons are driven into Cooper pairs.
WOS关键词	TOPOLOGICAL-INSULATOR ; MAJORANA FERMIONS ; SURFACE ; SUPERCONDUCTIVITY ; COEXISTENCE ; BI2SE3 ; ORDER ; STATE
WOS研究方向	Science & Technology - Other Topics
语种	英语
WOS记录号	WOS:000394223800001
资助机构	Ministry of Science and Technology of China(2016YFA0300400) ; Ministry of Science and Technology of China(2016YFA0300400) ; Ministry of Science and Technology of China(2016YFA0300400) ; Ministry of Science and Technology of China(2016YFA0300400) ; Ministry of Science and Technology of China(2016YFA0300400) ; Ministry of Science and Technology of China(2016YFA0300400) ; Ministry of Science and Technology of China(2016YFA0300400) ; Ministry of Science and Technology of China(2016YFA0300400) ; National Natural Science Foundation of China (NSFC)(A0402/11534005 ; National Natural Science Foundation of China (NSFC)(A0402/11534005 ; National Natural Science Foundation of China (NSFC)(A0402/11534005 ; National Natural Science Foundation of China (NSFC)(A0402/11534005 ; National Natural Science Foundation of China (NSFC)(A0402/11534005 ; National Natural Science Foundation of China (NSFC)(A0402/11534005 ; National Natural Science Foundation of China (NSFC)(A0402/11534005 ; National Natural Science Foundation of China (NSFC)(A0402/11534005 ; A0402/11190023 ; A0402/11190023 ; A0402/11190023 ; A0402/11190023 ; A0402/11190023 ; A0402/11190023 ; A0402/11190023 ; A0402/11190023 ; A0402/11374143 ; A0402/11374143 ; A0402/11374143 ; A0402/11374143 ; A0402/11374143 ; A0402/11374143 ; A0402/11374143 ; A0402/11374143 ; A0805/U1532267) ; A0805/U1532267) ; A0805/U1532267) ; A0805/U1532267) ; A0805/U1532267) ; A0805/U1532267) ; A0805/U1532267) ; A0805/U1532267) ; Ministry of Science and Technology of China(2016YFA0300400) ; Ministry of Science and Technology of China(2016YFA0300400) ; Ministry of Science and Technology of China(2016YFA0300400) ; Ministry of Science and Technology of China(2016YFA0300400) ; Ministry of Science and Technology of China(2016YFA0300400) ; Ministry of Science and Technology of China(2016YFA0300400) ; Ministry of Science and Technology of China(2016YFA0300400) ; Ministry of Science and Technology of China(2016YFA0300400) ; National Natural Science Foundation of China (NSFC)(A0402/11534005 ; National Natural Science Foundation of China (NSFC)(A0402/11534005 ; National Natural Science Foundation of China (NSFC)(A0402/11534005 ; National Natural Science Foundation of China (NSFC)(A0402/11534005 ; National Natural Science Foundation of China (NSFC)(A0402/11534005 ; National Natural Science Foundation of China (NSFC)(A0402/11534005 ; National Natural Science Foundation of China (NSFC)(A0402/11534005 ; National Natural Science Foundation of China (NSFC)(A0402/11534005 ; A0402/11190023 ; A0402/11190023 ; A0402/11190023 ; A0402/11190023 ; A0402/11190023 ; A0402/11190023 ; A0402/11190023 ; A0402/11190023 ; A0402/11374143 ; A0402/11374143 ; A0402/11374143 ; A0402/11374143 ; A0402/11374143 ; A0402/11374143 ; A0402/11374143 ; A0402/11374143 ; A0805/U1532267) ; A0805/U1532267) ; A0805/U1532267) ; A0805/U1532267) ; A0805/U1532267) ; A0805/U1532267) ; A0805/U1532267) ; A0805/U1532267)
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/32840]
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.Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China 2.Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China 3.Chinese Acad Sci, High Field Magnet Lab, Hefei 230026, Peoples R China 4.Univ Sci & Technol China, Hefei 230026, 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	Du, Guan,Shao, Jifeng,Yang, Xiong,et al. Drive the Dirac electrons into Cooper pairs in SrxBi2Se3[J]. NATURE COMMUNICATIONS,2017,8(无):1-9.
APA	Du, Guan.,Shao, Jifeng.,Yang, Xiong.,Du, Zengyi.,Fang, Delong.,...&Wen, Hai-Hu.(2017).Drive the Dirac electrons into Cooper pairs in SrxBi2Se3.NATURE COMMUNICATIONS,8(无),1-9.
MLA	Du, Guan,et al."Drive the Dirac electrons into Cooper pairs in SrxBi2Se3".NATURE COMMUNICATIONS 8.无(2017):1-9.