onr:"swepub:oai:lup.lub.lu.se:6cee5593-3661-4605-a724-d78c8ca31bf3"
Search: onr:"swepub:oai:lup.lub.lu.se:6cee5593-3661-4605-a724-d78c8ca31bf3" > Lifshitz transition...
- 1 of 1
- Previous record
- Next record
- To hitlist
Lifshitz transition and Van Hove singularity in a three-dimensional topological Dirac semimetal
- Xu, Su-Yang (author)
- Liu, Chang (author)
- Belopolski, I. (author)
- show more...
- Kushwaha, S. K. (author)
- Sankar, R. (author)
- Krizan, J. W. (author)
- Chang, T-R. (author)
- Miyamoto, K. (author)
- Alidoust, N. (author)
- Bian, Guang (author)
- Neupane, M. (author)
- Jeng, H-T. (author)
- Huang, C-Y. (author)
- Tsai, W-F. (author)
- Okuda, T. (author)
- Bansil, A. (author)
- Chou, F. C. (author)
- Cava, R. J. (author)
- Lin, H. (author)
- Hasan, M. Z. (author)
- show less...
- (creator_code:org_t)
- 2015
- 2015
- English.
- In: Physical Review B (Condensed Matter and Materials Physics). - 1098-0121. ; 92:7
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- A three-dimensional (3D) 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 ground state. Our studies 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. Our results identify an example of a band saddle-point singularity in 3D Dirac materials. This is in contrast to its two-dimensional analogs such as graphene and the 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 ground state.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
- Physical Review B (Condensed Matter and Materials Physics) (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Xu, Su-Yang
- Liu, Chang
- Belopolski, I.
- Kushwaha, S. K.
- Sankar, R.
- Krizan, J. W.
- show more...
- Chang, T-R.
- Polley, Craig
- Adell, Johan
- Thiagarajan, Bal ...
- Miyamoto, K.
- Alidoust, N.
- Bian, Guang
- Neupane, M.
- Jeng, H-T.
- Huang, C-Y.
- Tsai, W-F.
- Okuda, T.
- Bansil, A.
- Chou, F. C.
- Cava, R. J.
- Lin, H.
- Hasan, M. Z.
- show less...
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Physical Science ...
- and Condensed Matter ...
- Articles in the publication
- Physical Review ...
- By the university
- Lund University
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
