IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v10y2019i1d10.1038_s41467-019-11225-6.html
   My bibliography  Save this article

Uniaxial transition dipole moments in semiconductor quantum rings caused by broken rotational symmetry

Author

Listed:
  • Nicolai F. Hartmann

    (LMU Munich)

  • Matthew Otten

    (Argonne National Laboratory)

  • Igor Fedin

    (University of Chicago)

  • Dmitri Talapin

    (Argonne National Laboratory
    University of Chicago)

  • Moritz Cygorek

    (University of Ottawa)

  • Pawel Hawrylak

    (University of Ottawa)

  • Marek Korkusinski

    (National Research Council)

  • Stephen Gray

    (Argonne National Laboratory)

  • Achim Hartschuh

    (LMU Munich)

  • Xuedan Ma

    (Argonne National Laboratory)

Abstract

Semiconductor quantum rings are topological structures that support fascinating phenomena such as the Aharonov–Bohm effect and persistent current, which are of high relevance in the research of quantum information devices. The annular shape of quantum rings distinguishes them from other low-dimensional materials, and enables topologically induced properties such as geometry-dependent spin manipulation and emission. While optical transition dipole moments (TDMs) in zero to two-dimensional optical emitters have been well investigated, those in quantum rings remain obscure despite their utmost relevance to the quantum photonic applications of quantum rings. Here, we study the dimensionality and orientation of TDMs in CdSe quantum rings. In contrast to those in other two-dimensional optical emitters, we find that TDMs in CdSe quantum rings show a peculiar in-plane linear distribution. Our theoretical modeling reveals that this uniaxial TDM originates from broken rotational symmetry in the quantum ring geometries.

Suggested Citation

  • Nicolai F. Hartmann & Matthew Otten & Igor Fedin & Dmitri Talapin & Moritz Cygorek & Pawel Hawrylak & Marek Korkusinski & Stephen Gray & Achim Hartschuh & Xuedan Ma, 2019. "Uniaxial transition dipole moments in semiconductor quantum rings caused by broken rotational symmetry," Nature Communications, Nature, vol. 10(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-11225-6
    DOI: 10.1038/s41467-019-11225-6
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-019-11225-6
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-019-11225-6?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:10:y:2019:i:1:d:10.1038_s41467-019-11225-6. 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.