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dc.contributor.authorLi, Peng
dc.contributor.authorWen, Yan
dc.contributor.authorHe, Xin
dc.contributor.authorZhang, Qiang
dc.contributor.authorXia, Chuan
dc.contributor.authorYu, Zhi-Ming
dc.contributor.authorYang, Shengyuan A.
dc.contributor.authorZhu, Zhiyong
dc.contributor.authorAlshareef, Husam N.
dc.contributor.authorZhang, Xixiang
dc.date.accessioned2017-12-21T13:57:04Z
dc.date.available2017-12-21T13:57:04Z
dc.date.issued2017-12-15
dc.identifier.citationLi P, Wen Y, He X, Zhang Q, Xia C, et al. (2017) Evidence for topological type-II Weyl semimetal WTe2 . Nature Communications 8. Available: http://dx.doi.org/10.1038/s41467-017-02237-1.
dc.identifier.issn2041-1723
dc.identifier.pmid29247186
dc.identifier.doi10.1038/s41467-017-02237-1
dc.identifier.urihttp://hdl.handle.net/10754/626408
dc.description.abstractRecently, a type-II Weyl fermion was theoretically predicted to appear at the contact of electron and hole Fermi surface pockets. A distinguishing feature of the surfaces of type-II Weyl semimetals is the existence of topological surface states, so-called Fermi arcs. Although WTe2 was the first material suggested as a type-II Weyl semimetal, the direct observation of its tilting Weyl cone and Fermi arc has not yet been successful. Here, we show strong evidence that WTe2 is a type-II Weyl semimetal by observing two unique transport properties simultaneously in one WTe2 nanoribbon. The negative magnetoresistance induced by a chiral anomaly is quite anisotropic in WTe2 nanoribbons, which is present in b-axis ribbon, but is absent in a-axis ribbon. An extra-quantum oscillation, arising from a Weyl orbit formed by the Fermi arc and bulk Landau levels, displays a two dimensional feature and decays as the thickness increases in WTe2 nanoribbon.
dc.description.sponsorshipWe’d like to thank Prof. Xi Dai, institute of Physics (Beijing), for his critical reading and useful discussion in the revision of the manuscript. We thank Y. Yang for the assistance on polarized Raman, and Z. P. Hou for the useful discussion. The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST). P.L. acknowledges the financial support of CRF-2015-SENSORS-2709 (KAUST).
dc.publisherSpringer Nature
dc.relation.urlhttps://www.nature.com/articles/s41467-017-02237-1
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. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.titleEvidence for topological type-II Weyl semimetal WTe2
dc.typeArticle
dc.contributor.departmentFunctional Nanomaterials and Devices Research Group
dc.contributor.departmentImaging and Characterization Core Lab
dc.contributor.departmentKAUST Supercomputing Laboratory (KSL)
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentNanofabrication Core Lab
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentSupercomputing, Computational Scientists
dc.contributor.departmentThin Films & Characterization
dc.identifier.journalNature Communications
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionResearch Laboratory for Quantum Materials, Singapore University of Technology and Design, Singapore, 487372, Singapore.
kaust.personLi, Peng
kaust.personWen, Yan
kaust.personHe, Xin
kaust.personZhang, Qiang
kaust.personXia, Chuan
kaust.personZhu, Zhiyong
kaust.personAlshareef, Husam N.
kaust.personZhang, Xixiang
refterms.dateFOA2018-06-13T19:09:37Z
dc.date.published-online2017-12-15
dc.date.published-print2017-12


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This 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. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
Except where otherwise noted, this item's license is described as This 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. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.