Observation of unusual topological surface states in half-Heusler compounds LnPtBi (Ln = Lu, Y)

doi:10.1038/ncomms12924

	Observation of unusual topological surface states in half-Heusler compounds LnPtBi (Ln = Lu, Y)
	Liu, Z. K.1,2 ; Yang, L. X.3,4; Wu, S. -C.5; Shekhar, C.5; Jiang, J.1,2,6 ; Yang, H. F.7; Zhang, Y.6; Mo, S. -K.6; Hussain, Z.6; Yan, B.1,2,5 ; Felser, C.5; Chen, Y. L.1,2,3,4,8
	2016-09
发表期刊	NATURE COMMUNICATIONS
ISSN	2041-1723
卷号	7
发表状态	已发表
DOI	10.1038/ncomms12924
摘要	Topological quantum materials represent a new class of matter with both exotic physical phenomena and novel application potentials. Many Heusler compounds, which exhibit rich emergent properties such as unusual magnetism, superconductivity and heavy fermion behaviour, have been predicted to host non-trivial topological electronic structures. The coexistence of topological order and other unusual properties makes Heusler materials ideal platform to search for new topological quantum phases (such as quantum anomalous Hall insulator and topological superconductor). By carrying out angle-resolved photoemission spectroscopy and ab initio calculations on rare-earth half-Heusler compounds LnPtBi (Ln = Lu, Y), we directly observe the unusual topological surface states on these materials, establishing them as first members with non-trivial topological electronic structure in this class of materials. Moreover, as LnPtBi compounds are non-centrosymmetric superconductors, our discovery further highlights them as promising candidates of topological superconductors.
收录类别	SCI
语种	英语
资助项目	Office of Basic Energy Sciences of the U.S. DOE[DE-AC02-05CH11231]
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000385441700001
出版者	NATURE PUBLISHING GROUP
WOS关键词	DIRAC SEMIMETAL ; WEYL SEMIMETAL ; AB-INITIO ; INSULATORS ; SUPERCONDUCTIVITY ; PHOTOEMISSION ; DISCOVERY
原始文献类型	Article
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/1715
专题	物质科学与技术学院_PI研究组_柳仲楷组物质科学与技术学院_PI研究组_颜丙海组物质科学与技术学院_特聘教授组_陈宇林
通讯作者	Chen, Y. L.
作者单位	1.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201203, Peoples R China 2.CAS Shanghai Sci Res Ctr, Shanghai 201203, Peoples R China 3.Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Dept Phys, Beijing 100084, Peoples R China 4.Tsinghua Univ, Collaborat Innovat Ctr Quantum Matter, Beijing 100084, Peoples R China 5.Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany 6.Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA 7.Chinese Acad Sci, State Key Lab Funct Mat Informat, SIMIT, Shanghai 200050, Peoples R China 8.Univ Oxford, Dept Phys, Oxford OX1 3PU, England
第一作者单位	物质科学与技术学院
通讯作者单位	物质科学与技术学院
第一作者的第一单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Liu, Z. K.,Yang, L. X.,Wu, S. -C.,et al. Observation of unusual topological surface states in half-Heusler compounds LnPtBi (Ln = Lu, Y)[J]. NATURE COMMUNICATIONS,2016,7.
APA	Liu, Z. K..,Yang, L. X..,Wu, S. -C..,Shekhar, C..,Jiang, J..,...&Chen, Y. L..(2016).Observation of unusual topological surface states in half-Heusler compounds LnPtBi (Ln = Lu, Y).NATURE COMMUNICATIONS,7.
MLA	Liu, Z. K.,et al."Observation of unusual topological surface states in half-Heusler compounds LnPtBi (Ln = Lu, Y)".NATURE COMMUNICATIONS 7(2016).