IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v6y2015i1d10.1038_ncomms9586.html
   My bibliography  Save this article

High-temperature superconductivity in space-charge regions of lanthanum cuprate induced by two-dimensional doping

Author

Listed:
  • F. Baiutti

    (Max Planck Institute for Solid State Research)

  • G. Logvenov

    (Max Planck Institute for Solid State Research)

  • G. Gregori

    (Max Planck Institute for Solid State Research)

  • G. Cristiani

    (Max Planck Institute for Solid State Research)

  • Y. Wang

    (Max Planck Institute for Intelligent Systems)

  • W. Sigle

    (Max Planck Institute for Intelligent Systems)

  • P. A. van Aken

    (Max Planck Institute for Intelligent Systems)

  • J. Maier

    (Max Planck Institute for Solid State Research)

Abstract

The exploitation of interface effects turned out to be a powerful tool for generating exciting material properties. Such properties include magnetism, electronic and ionic transport and even superconductivity. Here, instead of using conventional homogeneous doping to enhance the hole concentration in lanthanum cuprate and achieve superconductivity, we replace single LaO planes with SrO dopant planes using atomic-layer-by-layer molecular beam epitaxy (two-dimensional doping). Electron spectroscopy and microscopy, conductivity measurements and zinc tomography reveal such negatively charged interfaces to induce layer-dependent superconductivity (Tc up to 35 K) in the space-charge zone at the side of the planes facing the substrate, where the strontium (Sr) profile is abrupt. Owing to the growth conditions, the other side exhibits instead a Sr redistribution resulting in superconductivity due to conventional doping. The present study represents a successful example of two-dimensional doping of superconducting oxide systems and demonstrates its power in this field.

Suggested Citation

  • F. Baiutti & G. Logvenov & G. Gregori & G. Cristiani & Y. Wang & W. Sigle & P. A. van Aken & J. Maier, 2015. "High-temperature superconductivity in space-charge regions of lanthanum cuprate induced by two-dimensional doping," Nature Communications, Nature, vol. 6(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms9586
    DOI: 10.1038/ncomms9586
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/ncomms9586
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/ncomms9586?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:6:y:2015:i:1:d:10.1038_ncomms9586. 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.