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

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dc.citation.articleNumber31
dc.citation.journalTitlenpj Quantum Materials
dc.citation.volumeNumber7
dc.contributor.authorWu, Han
dc.contributor.authorHallas, Alannah M.
dc.contributor.authorCai, Xiaochan
dc.contributor.authorHuang, Jianwei
dc.contributor.authorOh, Ji Seop
dc.contributor.authorLoganathan, Vaideesh
dc.contributor.authorWeiland, Ashley
dc.contributor.authorMcCandless, Gregory T.
dc.contributor.authorChan, Julia Y.
dc.contributor.authorMo, Sung-Kwan
dc.contributor.authorLu, Donghui
dc.contributor.authorHashimoto, Makoto
dc.contributor.authorDenlinger, Jonathan
dc.contributor.authorBirgeneau, Robert J.
dc.contributor.authorNevidomskyy, Andriy H.
dc.contributor.authorLi, Gang
dc.contributor.authorMorosan, Emilia
dc.contributor.authorYi, Ming
dc.contributor.orgRice Center for Quantum Materials
dc.date.accessioned2022-04-15T14:45:37Z
dc.date.available2022-04-15T14:45:37Z
dc.date.issued2022
dc.description.abstractTopological 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 PtPb4, 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 PtPb4 to be a material system with narrow crossings approximately protected by nonsymmorphic crystalline symmetries.
dc.identifier.citationWu, Han, Hallas, Alannah M., Cai, Xiaochan, et al.. "Nonsymmorphic symmetry-protected band crossings in a square-net metal PtPb4." <i>npj Quantum Materials,</i> 7, (2022) Springer Nature: https://doi.org/10.1038/s41535-022-00441-x.
dc.identifier.digitals41535-022-00441-x
dc.identifier.doihttps://doi.org/10.1038/s41535-022-00441-x
dc.identifier.urihttps://hdl.handle.net/1911/112098
dc.language.isoeng
dc.publisherSpringer Nature
dc.rightsThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleNonsymmorphic symmetry-protected band crossings in a square-net metal PtPb4
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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