Dirac nodal surfaces and nodal lines in ZrSiS

doi:10.1126/sciadv.aau6459

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

	Dirac nodal surfaces and nodal lines in ZrSiS
	Fu, BB ; Yi, CJ ; Zhang, TT ; Caputo, M ; Ma, JZ ; Gao, X ; Lv, BQ ; Kong, LY ; Huang, YB ; Richard, P
刊名	SCIENCE ADVANCES
	2019
卷号	5 期号:5 页码:—
关键词	SEMIMETAL DISCOVERY
ISSN号	2375-2548
DOI	10.1126/sciadv.aau6459
文献子类	期刊论文
英文摘要	Topological semimetals are characterized by symmetry-protected band crossings, which can be preserved in different dimensions in momentum space, forming zero-dimensional nodal points, one-dimensional nodal lines, or even two-dimensional nodal surfaces. Materials harboring nodal points and nodal lines have been experimentally verified, whereas experimental evidence of nodal surfaces is still lacking. Here, using angleresolved photoemission spectroscopy (ARPES), we reveal the coexistence of Dirac nodal surfaces and nodal lines in the bulk electronic structures of ZrSiS. As compared with previous ARPES studies on ZrSiS, we obtained pure bulk states, which enable us to extract unambiguously intrinsic information of the bulk nodal surfaces and nodal lines. Our results show that the nodal lines are the only feature near the Fermi level and constitute the whole Fermi surfaces. We not only prove that the low-energy quasiparticles in ZrSiS are contributed entirely by Dirac fermions but also experimentally realize the nodal surface in topological semimetals.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/31555]
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, Inst Phys, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland; 4.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China; 5.Songshan Lake Mat Lab, Dongguan 523808, Guangdong, Peoples R China; 6.Univ Sherbrooke, Inst Quant, 2500 Blvd Univ, Sherbrooke, PQ J1K 2R1, Canada 7.Univ Chinese Acad Sci, CAS Ctr Excellence Topol Quantum Computat, Beijing 100190, Peoples R China; 8.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China;
推荐引用方式 GB/T 7714	Fu, BB,Yi, CJ,Zhang, TT,et al. Dirac nodal surfaces and nodal lines in ZrSiS[J]. SCIENCE ADVANCES,2019,5(5):—.
APA	Fu, BB.,Yi, CJ.,Zhang, TT.,Caputo, M.,Ma, JZ.,...&Ding, H.(2019).Dirac nodal surfaces and nodal lines in ZrSiS.SCIENCE ADVANCES,5(5),—.
MLA	Fu, BB,et al."Dirac nodal surfaces and nodal lines in ZrSiS".SCIENCE ADVANCES 5.5(2019):—.