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  • Neupane, MadhabUniv Cent Florida, Dept Phys, Orlando, FL 32816 USA. (author)

Observation of topological nodal fermion semimetal phase in ZrSiS

  • Article/chapterEnglish2016

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  • 2016
  • printrdacarrier

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  • LIBRIS-ID:oai:DiVA.org:uu-298096
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-298096URI
  • https://doi.org/10.1103/PhysRevB.93.201104DOI

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  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Unveiling new topological phases of matter is one of the current objectives in condensed matter physics. Recent experimental discoveries of Dirac and Weyl semimetals prompt the search for other exotic phases of matter. Here we present a systematic angle-resolved photoemission spectroscopy study of ZrSiS, a prime topological nodal semimetal candidate. Our wider Brillouin zone (BZ) mapping shows multiple Fermi surface pockets such as the diamond-shaped Fermi surface, elliptical-shaped Fermi surface, and a small electron pocket encircling at the zone center (Gamma) point, the M point, and the X point of the BZ, respectively. We experimentally establish the spinless nodal fermion semimetal phase in ZrSiS, which is supported by our first-principles calculations. Our findings evidence that the ZrSiS-type of material family is a new platform on which to explore exotic states of quantum matter; these materials are expected to provide an avenue for engineering two-dimensional topological insulator systems.

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  • Belopolski, Ilya (author)
  • Hosen, M. MofazzelUniv Cent Florida, Dept Phys, Orlando, FL 32816 USA. (author)
  • Sanchez, Daniel S.Princeton Univ, Joseph Henry Lab, Princeton, NJ 08544 USA.;Princeton Univ, Dept Phys, Princeton, NJ 08544 USA. (author)
  • Sankar, RamanNatl Taiwan Univ, Ctr Condensed Matter Sci, Taipei 10617, Taiwan. (author)
  • Szlawska, MariaPolish Acad Sci, Inst Low Temp & Struct Res, POB 937, PL-50950 Wroclaw, Poland. (author)
  • Xu, Su-YangPrinceton Univ, Joseph Henry Lab, Princeton, NJ 08544 USA.;Princeton Univ, Dept Phys, Princeton, NJ 08544 USA. (author)
  • Dimitri, KlaussUniv Cent Florida, Dept Phys, Orlando, FL 32816 USA. (author)
  • Dhakal, NagendraUniv Cent Florida, Dept Phys, Orlando, FL 32816 USA. (author)
  • Maldonado, PabloUppsala universitet,Materialteori(Swepub:uu)pabpa329 (author)
  • Oppeneer, Peter M.Uppsala universitet,Materialteori(Swepub:uu)peopp623 (author)
  • Kaczorowski, DariuszPolish Acad Sci, Inst Low Temp & Struct Res, POB 937, PL-50950 Wroclaw, Poland. (author)
  • Chou, FangchengNatl Taiwan Univ, Ctr Condensed Matter Sci, Taipei 10617, Taiwan. (author)
  • Hasan, M. ZahidPrinceton Univ, Joseph Henry Lab, Princeton, NJ 08544 USA.;Princeton Univ, Dept Phys, Princeton, NJ 08544 USA. (author)
  • Durakiewicz, TomaszLos Alamos Natl Lab, Condensed Matter & Magnet Sci Grp, POB 1663, Los Alamos, NM 87545 USA. (author)
  • Univ Cent Florida, Dept Phys, Orlando, FL 32816 USA.Princeton Univ, Joseph Henry Lab, Princeton, NJ 08544 USA.;Princeton Univ, Dept Phys, Princeton, NJ 08544 USA. (creator_code:org_t)

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  • In:PHYSICAL REVIEW B93:202469-9950

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