Nonsymmorphic symmetry-protected band crossings in a square-net metal PtPb4

doi:10.1038/s41535-022-00441-x

	Nonsymmorphic symmetry-protected band crossings in a square-net metal PtPb4
	Wu, Han 1; Hallas, Alannah M.1,2; Cai, Xiaochan3 ; Huang, Jianwei 1; Oh, Ji Seop 1,4; Loganathan, Vaideesh 1; Weiland, Ashley 5; McCandless, Gregory T.5,6; Chan, Julia Y.5,6; Mo, Sung Kwan 7; Lu, Donghui 8; Hashimoto, Makoto 8; Denlinger, Jonathan 7; Birgeneau, Robert J.4,9,10; Nevidomskyy, Andriy H.1; Li, Gang3,11 ; Morosan, Emilia 1; Yi, Ming 1
	2022-12-01
发表期刊	NPJ QUANTUM MATERIALS (IF:5.4[JCR-2023],5.6[5-Year])
ISSN	2397-4648
EISSN	2397-4648
卷号	7 期号:1
发表状态	已发表
DOI	10.1038/s41535-022-00441-x
摘要	Topological semimetals with symmetry-protected band crossings have emerged as a rich landscape to explore intriguing electronic phenomena. Nonsymmorphic symmetries in particular have been shown to play an important role in protecting the crossings along a line (rather than a point) in momentum space. Here we report experimental and theoretical evidence for Dirac nodal line crossings along the Brillouin zone boundaries in PtPb, arising from the nonsymmorphic symmetry of its crystal structure. Interestingly, while the nodal lines would remain gapless in the absence of spin–orbit coupling (SOC), the SOC, in this case, plays a detrimental role to topology by lifting the band degeneracy everywhere except at a set of isolated points. Nevertheless, the nodal line is observed to have a bandwidth much smaller than that found in density functional theory (DFT). Our findings reveal PtPb to be a material system with narrow crossings approximately protected by nonsymmorphic crystalline symmetries.
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收录类别	SCIE
语种	英语
Scopus 记录号	2-s2.0-85126763187
来源库	Scopus
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/169259
专题	物质科学与技术学院_PI研究组_李刚组物质科学与技术学院_博士生
共同第一作者	Hallas, Alannah M.; Cai, Xiaochan
作者单位	1.Department of Physics and Astronomy and Rice Center for Quantum Materials,Rice University,Houston,77005,United States 2.Department of Physics and Astronomy and Quantum Matter Institute,University of British Columbia,Vancouver,V6T 1Z1,Canada 3.School of Physical Science and Technology,ShanghaiTech University,Shanghai,201210,China 4.Department of Physics,University of California,Berkeley,94720,United States 5.Department of Chemistry & Biochemistry,University of Texas at Dallas,Richardson,75080,United States 6.Department of Chemistry and Biochemistry,Baylor University,Waco,76798,United States 7.Advanced Light Source,Lawrence Berkeley National Laboratory,Berkeley,94720,United States 8.Stanford Synchrotron Radiation Lightsource,SLAC National Accelerator Laboratory,Menlo Park,94025,United States 9.Materials Sciences Division,Lawrence Berkeley National Laboratory,Berkeley,94720,United States 10.Department of Materials Science and Engineering,University of California,Berkeley,United States 11.ShanghaiTech Laboratory for Topological Physics,ShanghaiTech University,Shanghai,201210,China
推荐引用方式 GB/T 7714	Wu, Han,Hallas, Alannah M.,Cai, Xiaochan,et al. Nonsymmorphic symmetry-protected band crossings in a square-net metal PtPb4[J]. NPJ QUANTUM MATERIALS,2022,7(1).
APA	Wu, Han.,Hallas, Alannah M..,Cai, Xiaochan.,Huang, Jianwei.,Oh, Ji Seop.,...&Yi, Ming.(2022).Nonsymmorphic symmetry-protected band crossings in a square-net metal PtPb4.NPJ QUANTUM MATERIALS,7(1).
MLA	Wu, Han,et al."Nonsymmorphic symmetry-protected band crossings in a square-net metal PtPb4".NPJ QUANTUM MATERIALS 7.1(2022).