IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v4y2013i1d10.1038_ncomms3277.html
   My bibliography  Save this article

Mapping the 3D surface potential in Bi2Se3

Author

Listed:
  • Chris Mann

    (Materials Science & Engineering Graduate Program, Texas Materials Institute, University of Texas at Austin, 204 E. Dean Keeton Street, Stop C2201)

  • Damien West

    (Applied Physics, and Astronomy, Rensselaer Polytechnic Institute)

  • Ireneusz Miotkowski

    (Purdue University)

  • Yong P. Chen

    (Purdue University
    Birck Nanotechnology Center and School of Electrical and Computer Engineering, Purdue University)

  • Shengbai Zhang

    (Applied Physics, and Astronomy, Rensselaer Polytechnic Institute)

  • Chih-Kang Shih

    (Materials Science & Engineering Graduate Program, Texas Materials Institute, University of Texas at Austin, 204 E. Dean Keeton Street, Stop C2201
    University of Texas at Austin)

Abstract

Bi2Se3 initially emerged as a particularly promising host of topological physics. However, in actual materials, several issues have been uncovered including strong surface band bending and potential fluctuations. To investigate these concerns, we study nominally stoichiometric Bi2Se3 using scanning tunnelling microscopy. Here we identify two distinct distributions of BiSe antisites that act as nanometer-scale sensors for the surface band-bending field. To confirm this, we examine bulk Cu-doped Bi2Se3 and demonstrate a significantly reduced surface band-bending field. In addition, we find that in the case of unintentionally doped Bi2Se3, lateral fluctuations of the Dirac point can be directly correlated with specific near-surface point defects, namely Se vacancies.

Suggested Citation

  • Chris Mann & Damien West & Ireneusz Miotkowski & Yong P. Chen & Shengbai Zhang & Chih-Kang Shih, 2013. "Mapping the 3D surface potential in Bi2Se3," Nature Communications, Nature, vol. 4(1), pages 1-6, October.
    • Handle: RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms3277
    DOI: 10.1038/ncomms3277
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/ncomms3277
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/ncomms3277?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms3277. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.