Realization of low-energy type-II Dirac fermions in (Ir1-xPtx)Te-2 superconductors

doi:10.1088/1674-1056/28/3/037103

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Realization of low-energy type-II Dirac fermions in (Ir1-xPtx)Te-2 superconductors
	Fu, BB ; Yi, CJ ; Wang, ZJ ; Yang, M ; Lv, BQ ; Gao, X ; Li, M ; Huang, YB ; Weng, HM ; Shi, YG
刊名	CHINESE PHYSICS B
	2019
卷号	28 期号:3 页码:—
关键词	SURFACE-STATES SEMIMETAL
ISSN号	1674-1056
DOI	10.1088/1674-1056/28/3/037103
文献子类	期刊论文
英文摘要	Topological Dirac semimetals (DSMs) present a kind of topologically nontrivial quantum state of matter, which has massless Dirac fermions in the bulk and topologically protected states on certain surfaces. In superconducting DSMs, the effects of their nontrivial topology on superconducting pairing could realize topological superconductivity in the bulk or on the surface. As superconducting pairing takes place at the Fermi level E-F, to make the effects possible, the Dirac points should lie in the vicinity of E-F so that the topological electronic states can participate in the superconducting paring. Here, we show using angle-resolved photoelectron spectroscopy that in a series of (Ir1-xPtx)Te-2 compounds, the type-II Dirac points reside around E-F in the superconducting region, in which the bulk superconductivity has a maximum T-c of similar to 3 K. The realization of the coexistence of bulk superconductivity and low-energy Dirac fermions in (Ir1-xPtx)Te-2 paves the way for studying the effects of the nontrivial topology in DSMs on the superconducting state.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/31789]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China; 2.Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China; 3.Renmin Univ China, Beijing Key Lab Optoelect Funct Mat & Micronano D, Beijing 100872, Peoples R China; 4.Songshan Lake Mat Lab, Dongguan 523808, Peoples R China; 5.Univ Chinese Acad Sci, CAS Ctr Excellence Topol Quantum Computat, Beijing 100190, Peoples R China 6.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China; 7.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China; 8.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
推荐引用方式 GB/T 7714	Fu, BB,Yi, CJ,Wang, ZJ,et al. Realization of low-energy type-II Dirac fermions in (Ir1-xPtx)Te-2 superconductors[J]. CHINESE PHYSICS B,2019,28(3):—.
APA	Fu, BB.,Yi, CJ.,Wang, ZJ.,Yang, M.,Lv, BQ.,...&Ding, H.(2019).Realization of low-energy type-II Dirac fermions in (Ir1-xPtx)Te-2 superconductors.CHINESE PHYSICS B,28(3),—.
MLA	Fu, BB,et al."Realization of low-energy type-II Dirac fermions in (Ir1-xPtx)Te-2 superconductors".CHINESE PHYSICS B 28.3(2019):—.