IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v12y2021i1d10.1038_s41467-021-26149-3.html
   My bibliography  Save this article

Kondo effect and spin–orbit coupling in graphene quantum dots

Author

Listed:
  • Annika Kurzmann

    (ETH Zürich)

  • Yaakov Kleeorin

    (University of Chicago)

  • Chuyao Tong

    (ETH Zürich)

  • Rebekka Garreis

    (ETH Zürich)

  • Angelika Knothe

    (University of Manchester)

  • Marius Eich

    (ETH Zürich)

  • Christopher Mittag

    (ETH Zürich)

  • Carolin Gold

    (ETH Zürich)

  • Folkert Kornelis Vries

    (ETH Zürich)

  • Kenji Watanabe

    (National Institute for Materials Science)

  • Takashi Taniguchi

    (National Institute for Materials Science)

  • Vladimir Fal’ko

    (University of Manchester)

  • Yigal Meir

    (Ben-Gurion University of the Negev)

  • Thomas Ihn

    (ETH Zürich
    ETH Zurich)

  • Klaus Ensslin

    (ETH Zürich
    ETH Zurich)

Abstract

The Kondo effect is a cornerstone in the study of strongly correlated fermions. The coherent exchange coupling of conduction electrons to local magnetic moments gives rise to a Kondo cloud that screens the impurity spin. Here we report on the interplay between spin–orbit interaction and the Kondo effect, that can lead to a underscreened Kondo effects in quantum dots in bilayer graphene. More generally, we introduce a different experimental platform for studying Kondo physics. In contrast to carbon nanotubes, where nanotube chirality determines spin–orbit coupling breaking the SU(4) symmetry of the electronic states relevant for the Kondo effect, we study a planar carbon material where a small spin–orbit coupling of nominally flat graphene is enhanced by zero-point out-of-plane phonons. The resulting two-electron triplet ground state in bilayer graphene dots provides a route to exploring the Kondo effect with a small spin–orbit interaction.

Suggested Citation

  • Annika Kurzmann & Yaakov Kleeorin & Chuyao Tong & Rebekka Garreis & Angelika Knothe & Marius Eich & Christopher Mittag & Carolin Gold & Folkert Kornelis Vries & Kenji Watanabe & Takashi Taniguchi & Vl, 2021. "Kondo effect and spin–orbit coupling in graphene quantum dots," Nature Communications, Nature, vol. 12(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-26149-3
    DOI: 10.1038/s41467-021-26149-3
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-021-26149-3
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-021-26149-3?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
    ---><---

    References listed on IDEAS

    as
    1. D. Goldhaber-Gordon & Hadas Shtrikman & D. Mahalu & David Abusch-Magder & U. Meirav & M. A. Kastner, 1998. "Kondo effect in a single-electron transistor," Nature, Nature, vol. 391(6663), pages 156-159, January.
    2. Jesper Nygård & David Henry Cobden & Poul Erik Lindelof, 2000. "Kondo physics in carbon nanotubes," Nature, Nature, vol. 408(6810), pages 342-346, November.
    3. F. Kuemmeth & S. Ilani & D. C. Ralph & P. L. McEuen, 2008. "Coupling of spin and orbital motion of electrons in carbon nanotubes," Nature, Nature, vol. 452(7186), pages 448-452, March.
    Full references (including those not matched with items on IDEAS)

    Citations

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


    Cited by:

    1. K. Hecker & L. Banszerus & A. Schäpers & S. Möller & A. Peters & E. Icking & K. Watanabe & T. Taniguchi & C. Volk & C. Stampfer, 2023. "Coherent charge oscillations in a bilayer graphene double quantum dot," Nature Communications, Nature, vol. 14(1), pages 1-8, December.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Xudong Xiao & Kyaw Zin Latt & Jue Gong & Taewoo Kim & Justin G. Connell & Yuzi Liu & H. Christopher Fry & John E. Pearson & Owen S. Wostoupal & Mengyuan Li & Calvin Soldan & Zhenzhen Yang & Richard D., 2024. "Light-induced Kondo-like exciton-spin interaction in neodymium(II) doped hybrid perovskite," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    2. Qi Feng & Junxi Duan & Ping Wang & Wei Jiang & Huimin Peng & Jinrui Zhong & Jin Cao & Yuqing Hu & Qiuli Li & Qinsheng Wang & Jiadong Zhou & Yugui Yao, 2024. "Heterodimensional Kondo superlattices with strong anisotropy," Nature Communications, Nature, vol. 15(1), pages 1-7, December.
    3. C. Piquard & P. Glidic & C. Han & A. Aassime & A. Cavanna & U. Gennser & Y. Meir & E. Sela & A. Anthore & F. Pierre, 2023. "Observing the universal screening of a Kondo impurity," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    4. Kenji Shibata & Masaki Yoshida & Kazuhiko Hirakawa & Tomohiro Otsuka & Satria Zulkarnaen Bisri & Yoshihiro Iwasa, 2023. "Single PbS colloidal quantum dot transistors," Nature Communications, Nature, vol. 14(1), pages 1-8, 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:12:y:2021:i:1:d:10.1038_s41467-021-26149-3. 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.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with 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.