Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/244236
Share/Export:
logo share SHARE logo core CORE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE

Invite to open peer review
Title

Ab initio study of 2DEG at the surface of topological insulator Bi2Te3

AuthorsVergniory, Maia G. CSIC ORCID; Menshchikova, Tatiana V.; Eremeev, Sergey V.; Chulkov, Eugene V. CSIC ORCID
Issue Date2012
PublisherSpringer Nature
CitationJETP Letters 95: 213–218 (2012)
AbstractBy means of ab initio DFT calculation, we analyze the mechanism that drives the formation and evolution of the 2D electron gas (2DEG) states at the surface of Bi2Te3 topological insulator (TI). As it has been proved earlier it is due to an expansion of the van der Waals (vdW) spacing produced by intercalation of adsorbates. We will show that the effect of this expansion, in this particular surface, leads to several intriguing phenomena. On one hand we observe a different dispersion of the Dirac cone with respect to the ideal surface and the formation of Parabolic Bands (PB) below the conduction band and M-shaped bands in the valence band, the latters have been observed recently in photoemission experiments. On the other hand the expansion of the vdW gaps changes the symmetry of the orbitals forming the Dirac cone and therefore producing modifications in the local spin texture. The localization of these new 2DEG-states and the relocalization of the Dirac cone will be studied as well.
Publisher version (URL)https://doi.org/10.1134/S0021364012040108
URIhttp://hdl.handle.net/10261/244236
DOI10.1134/S0021364012040108
ISSN0021-3640
Appears in Collections:(CFM) Artículos




Files in This Item:
File Description SizeFormat
accesoRestringido.pdf59,24 kBAdobe PDFThumbnail
View/Open
Show full item record

CORE Recommender

SCOPUSTM   
Citations

22
checked on Apr 13, 2024

WEB OF SCIENCETM
Citations

22
checked on Feb 25, 2024

Page view(s)

67
checked on Apr 22, 2024

Download(s)

11
checked on Apr 22, 2024

Google ScholarTM

Check

Altmetric

Altmetric


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.