Strong spin-orbit coupling and Dirac nodal lines in the three-dimensional electronic structure of metallic rutile IrO2

doi:10.1103/PhysRevB.99.195106

	Strong spin-orbit coupling and Dirac nodal lines in the three-dimensional electronic structure of metallic rutile IrO2
	Xu, X.1; Jiang, J.2,3,4 ; Shi, W. J.5; Suess, Vicky 5; Shekhar, C.5; Sun, S. C.1; Chen, Y. J.1; Mo, S-K 4; Felser, C.5; Yan, B. H.5; Yang, H. F.2 ; Liu, Z. K.2 ; Sun, Y.5; Yang, L. X.1,6; Chen, Y. L.1,2,3
	2019-05-03
发表期刊	PHYSICAL REVIEW B
ISSN	2469-9950
卷号	99 期号:19
发表状态	已发表
DOI	10.1103/PhysRevB.99.195106
摘要	Using high-resolution angle-resolved photoemission spectroscopy and ab initio calculation, we have studied the bulk and surface electronic structure of metallic rutile 5d transition metal oxide IrO2 that harbors both edge and corner sharing Ir-O octahedrons. We observe strong modulation of the band structure by spin-orbit coupling (SOC). The measured band structure is well reproduced by our ab initio calculation without band renormalization, suggesting the absence of the SOC-enhanced correlation effect in IrO2. In accordance with the calculation, we visualize two types of Dirac nodal lines (DNLs) protected by mirror symmetry and nonsymmorphic crystal symmetry, respectively. SOC gaps the first type of DNLs, which may contribute largely to the strong spin Hall effect. The second type of DNLs at the edges of Brillouin zone, however, remain intact against SOC. Our results not only provide important insights into the exotic transport properties of IrO2, but also shed light on the understanding of the role of SOC in the iridate family.
收录类别	SCI ; SCIE ; EI
语种	英语
资助项目	Department of Energy (DOE) Office of Science User Facility[DE-AC02-05CH11231]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000467382600002
出版者	AMER PHYSICAL SOC
EI入藏号	20192006915975
EI主题词	Band structure ; Calculations ; Crystal symmetry ; Electronic structure ; Oxide minerals ; Photoelectron spectroscopy ; Spin Hall effect ; Titanium dioxide ; Transition metal oxides ; Transition metals
EI分类号	Minerals:482.2 ; Metallurgy and Metallography:531 ; Magnetism: Basic Concepts and Phenomena:701.2 ; Inorganic Compounds:804.2 ; Mathematics:921 ; Solid State Physics:933 ; Crystal Lattice:933.1.1
WOS关键词	RUO2
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/40888
专题	物质科学与技术学院_特聘教授组_陈宇林物质科学与技术学院_PI研究组_柳仲楷组
通讯作者	Yang, L. X.
作者单位	1.Tsinghua Univ, Dept Phys, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China 2.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai, Peoples R China 3.Univ Oxford, Dept Phys, Oxford OX1 3PU, England 4.Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA 5.Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany 6.Collaborat Innovat Ctr Quantum Matter, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Xu, X.,Jiang, J.,Shi, W. J.,et al. Strong spin-orbit coupling and Dirac nodal lines in the three-dimensional electronic structure of metallic rutile IrO2[J]. PHYSICAL REVIEW B,2019,99(19).
APA	Xu, X..,Jiang, J..,Shi, W. J..,Suess, Vicky.,Shekhar, C..,...&Chen, Y. L..(2019).Strong spin-orbit coupling and Dirac nodal lines in the three-dimensional electronic structure of metallic rutile IrO2.PHYSICAL REVIEW B,99(19).
MLA	Xu, X.,et al."Strong spin-orbit coupling and Dirac nodal lines in the three-dimensional electronic structure of metallic rutile IrO2".PHYSICAL REVIEW B 99.19(2019).