Skip to main content

Lifshitz transition and Van Hove singularity in a three-dimensional topological Dirac semimetal

Author(s): Xu, Su-Yang; Liu, Chang; Belopolski, Ilya; Kushwaha, SK; Sankar, R; et al

Download
To refer to this page use: http://arks.princeton.edu/ark:/88435/pr1v44h
Full metadata record
DC FieldValueLanguage
dc.contributor.authorXu, Su-Yang-
dc.contributor.authorLiu, Chang-
dc.contributor.authorBelopolski, Ilya-
dc.contributor.authorKushwaha, SK-
dc.contributor.authorSankar, R-
dc.contributor.authorKrizan, JW-
dc.contributor.authorChang, T-R-
dc.contributor.authorPolley, CM-
dc.contributor.authorAdell, J-
dc.contributor.authorBalasubramanian, T-
dc.contributor.authorMiyamoto, K-
dc.contributor.authorAlidoust, N-
dc.contributor.authorBian, Guang-
dc.contributor.authorNeupane, M-
dc.contributor.authorJeng, H-T-
dc.contributor.authorHuang, C-Y-
dc.contributor.authorTsai, W-F-
dc.contributor.authorOkuda, T-
dc.contributor.authorBansil, A-
dc.contributor.authorChou, FC-
dc.contributor.authorCava, RJ-
dc.contributor.authorLin, H-
dc.contributor.authorHasan, M. Zahid-
dc.date.accessioned2019-08-29T17:07:41Z-
dc.date.available2019-08-29T17:07:41Z-
dc.date.issued2015-08en_US
dc.identifier.citationXu, Su-Yang, Liu, Chang, Belopolski, I, Kushwaha, SK, Sankar, R, Krizan, JW, Chang, T-R, Polley, CM, Adell, J, Balasubramanian, T, Miyamoto, K, Alidoust, N, Bian, Guang, Neupane, M, Jeng, H-T, Huang, C-Y, Tsai, W-F, Okuda, T, Bansil, A, Chou, FC, Cava, RJ, Lin, H, Hasan, MZ. (2015). Lifshitz transition and Van Hove singularity in a three-dimensional topological Dirac semimetal. Physical Review B, 92 (7), 10.1103/PhysRevB.92.075115en_US
dc.identifier.issn1098-0121-
dc.identifier.urihttp://arks.princeton.edu/ark:/88435/pr1v44h-
dc.description.abstractA topological Dirac semimetal is a novel state of quantum matter which has recently attracted much attention as an apparent 3D version of graphene. In this paper, we report results on the electronic structure of the 3D Dirac semimetal Na3Bi at a surface that reveals its nontrivial groundstate. Our studies, for the first time, reveal that the two 3D Dirac cones go through a topological change in the constant energy contour as a function of the binding energy, featuring a Lifshitz point, which is missing in a strict 3D analog of graphene (in other words, Na3Bi is not a true analog of 3D graphene). Our results identify the first example of a band saddle point singularity in 3D Dirac materials. This is in contrast to its 2D analogs such as graphene and the helical Dirac surface states of a topological insulator. The observation of multiple Dirac nodes in Na3Bi connecting via a Lifshitz point along its crystalline rotational axis away from the Kramers point serves as a decisive signature for the symmetry-protected nature of the Dirac semimetal’s topological bulk groundstate.en_US
dc.format.extent1 - 5en_US
dc.language.isoen_USen_US
dc.relation.ispartofPhysical Review Ben_US
dc.rightsAuthor's manuscripten_US
dc.titleLifshitz transition and Van Hove singularity in a three-dimensional topological Dirac semimetalen_US
dc.typeJournal Articleen_US
dc.identifier.doidoi:10.1103/PhysRevB.92.075115-
dc.date.eissued2015-08-10en_US
dc.identifier.eissn1550-235X-
pu.type.symplectichttp://www.symplectic.co.uk/publications/atom-terms/1.0/journal-articleen_US

Files in This Item:
File Description SizeFormat 
1502.06917v2.pdf1.74 MBAdobe PDFView/Download


Items in OAR@Princeton are protected by copyright, with all rights reserved, unless otherwise indicated.