Dirac node arcs in PtSn4

dc.contributor.author Canfield, Paul
dc.contributor.author Wang, Lin-Lin
dc.contributor.author Mun, Eundeok
dc.contributor.author Johnson, Duane
dc.contributor.author Mou, Daixiang
dc.contributor.author Johnson, Duane
dc.contributor.author Lee, Youngbin
dc.contributor.author Bud’ko, Serguei
dc.contributor.author Canfield, Paul
dc.contributor.author Kaminski, Adam
dc.contributor.department Ames National Laboratory
dc.contributor.department Physics and Astronomy
dc.contributor.department Materials Science and Engineering
dc.date 2018-02-19T07:01:01.000
dc.date.accessioned 2020-06-29T23:27:29Z
dc.date.available 2020-06-29T23:27:29Z
dc.date.copyright Fri Jan 01 00:00:00 UTC 2016
dc.date.issued 2016-04-04
dc.description.abstract <p>In topological quantum materials1–3 the conduction and valence bands are connected at points or along lines in the momentum space. A number of studies have demonstrated that several materials are indeed Dirac/Weyl semimetals4–8 . However, there is still no experimental confirmation of materials with line nodes, in which the Dirac nodes form closed loops in the momentum space2,3 . Here we report the discovery of a novel topological structure—Dirac node arcs—in the ultrahigh magnetoresistive material PtSn4 using laser-based angle-resolved photoemission spectroscopy data and density functional theory calculations. Unlike the closed loops of line nodes, the Dirac node arc structure arises owing to the surface states and resembles the Dirac dispersion in graphene that is extended along a short line in the momentum space. We propose that this reported Dirac node arc structure is a novel topological state that provides an exciting platform for studying the exotic properties of Dirac fermions.</p>
dc.description.comments <p>This is a manuscript of an article published as Yun Wu, Lin-Lin Wang, Eundeok Mun, D. D. Johnson, Daixiang Mou, Lunan Huang, Yongbin Lee, S. L. Bud’ko, P.C. Canfield, and Adam Kaminski, “Dirac Node Arcs in PtSn4,” Nature Physics 12, 667-671 (2016). DOI: <a href="http://dx.doi.org/10.1038/NPHYS3712" target="_blank">10.1038/NPHYS3712</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/ameslab_pubs/410/
dc.identifier.articleid 1412
dc.identifier.contextkey 11321298
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ameslab_pubs/410
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/7980
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/ameslab_pubs/410/2016_Johnson_DiracNodes.pdf|||Sat Jan 15 00:10:15 UTC 2022
dc.source.uri 10.1038/NPHYS3712
dc.subject.disciplines Condensed Matter Physics
dc.subject.disciplines Materials Science and Engineering
dc.title Dirac node arcs in PtSn4
dc.type article
dc.type.genre article
dspace.entity.type Publication
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