IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v2y2011i1d10.1038_ncomms1602.html
   My bibliography  Save this article

Interface engineering of quantum Hall effects in digital transition metal oxide heterostructures

Author

Listed:
  • Di Xiao

    (Oak Ridge National Laboratory)

  • Wenguang Zhu

    (Oak Ridge National Laboratory
    University of Tennessee)

  • Ying Ran

    (Boston College)

  • Naoto Nagaosa

    (The University of Tokyo
    Cross-Correlated Material Research Group (CMGR) and Correlated Electron Research Group (CERG), RIKEN-ASI)

  • Satoshi Okamoto

    (Oak Ridge National Laboratory)

Abstract

Topological insulators are characterized by a non-trivial band topology driven by the spin-orbit coupling. To fully explore the fundamental science and application of topological insulators, material realization is indispensable. Here we predict, based on tight-binding modelling and first-principles calculations, that bilayers of perovskite-type transition-metal oxides grown along the [111] crystallographic axis are potential candidates for two-dimensional topological insulators. The topological band structure of these materials can be fine-tuned by changing dopant ions, substrates and external gate voltages. We predict that LaAuO3 bilayers have a topologically non-trivial energy gap of about 0.15 eV, which is sufficiently large to realize the quantum spin Hall effect at room temperature. Intriguing phenomena, such as fractional quantum Hall effect, associated with the nearly flat topologically non-trivial bands found in eg systems are also discussed.

Suggested Citation

  • Di Xiao & Wenguang Zhu & Ying Ran & Naoto Nagaosa & Satoshi Okamoto, 2011. "Interface engineering of quantum Hall effects in digital transition metal oxide heterostructures," Nature Communications, Nature, vol. 2(1), pages 1-8, September.
  • Handle: RePEc:nat:natcom:v:2:y:2011:i:1:d:10.1038_ncomms1602
    DOI: 10.1038/ncomms1602
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/ncomms1602
    File Function: Abstract
    Download Restriction: no

    File URL: https://libkey.io/10.1038/ncomms1602?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
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Xiao-Wei Zhang & Chong Wang & Xiaoyu Liu & Yueyao Fan & Ting Cao & Di Xiao, 2024. "Polarization-driven band topology evolution in twisted MoTe2 and WSe2," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    2. Jiayu Li & Qiushi Yao & Lin Wu & Zongxiang Hu & Boya Gao & Xiangang Wan & Qihang Liu, 2022. "Designing light-element materials with large effective spin-orbit coupling," Nature Communications, Nature, vol. 13(1), pages 1-7, December.

    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:2:y:2011:i:1:d:10.1038_ncomms1602. 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.