IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v14y2023i1d10.1038_s41467-023-39109-w.html
   My bibliography  Save this article

Single-electron charge transfer into putative Majorana and trivial modes in individual vortices

Author

Listed:
  • Jian-Feng Ge

    (Leiden University)

  • Koen M. Bastiaans

    (Leiden University
    Delft University of Technology)

  • Damianos Chatzopoulos

    (Leiden University)

  • Doohee Cho

    (Yonsei University)

  • Willem O. Tromp

    (Leiden University)

  • Tjerk Benschop

    (Leiden University)

  • Jiasen Niu

    (Leiden University)

  • Genda Gu

    (Brookhaven National Laboratory)

  • Milan P. Allan

    (Leiden University)

Abstract

Majorana bound states are putative collective excitations in solids that exhibit the self-conjugate property of Majorana fermions—they are their own antiparticles. In iron-based superconductors, zero-energy states in vortices have been reported as potential Majorana bound states, but the evidence remains controversial. Here, we use scanning tunneling noise spectroscopy to study the tunneling process into vortex bound states in the conventional superconductor NbSe2, and in the putative Majorana platform FeTe0.55Se0.45. We find that tunneling into vortex bound states in both cases exhibits charge transfer of a single electron charge. Our data for the zero-energy bound states in FeTe0.55Se0.45 exclude the possibility of Yu–Shiba–Rusinov states and are consistent with both Majorana bound states and trivial vortex bound states. Our results open an avenue for investigating the exotic states in vortex cores and for future Majorana devices, although further theoretical investigations involving charge dynamics and superconducting tips are necessary.

Suggested Citation

  • Jian-Feng Ge & Koen M. Bastiaans & Damianos Chatzopoulos & Doohee Cho & Willem O. Tromp & Tjerk Benschop & Jiasen Niu & Genda Gu & Milan P. Allan, 2023. "Single-electron charge transfer into putative Majorana and trivial modes in individual vortices," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-39109-w
    DOI: 10.1038/s41467-023-39109-w
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-023-39109-w
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-023-39109-w?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. Damianos Chatzopoulos & Doohee Cho & Koen M. Bastiaans & Gorm O. Steffensen & Damian Bouwmeester & Alireza Akbari & Genda Gu & Jens Paaske & Brian M. Andersen & Milan P. Allan, 2021. "Spatially dispersing Yu-Shiba-Rusinov states in the unconventional superconductor FeTe0.55Se0.45," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    2. R. de-Picciotto & M. Reznikov & M. Heiblum & V. Umansky & G. Bunin & D. Mahalu, 1997. "Direct observation of a fractional charge," Nature, Nature, vol. 389(6647), pages 162-164, September.
    3. Mingyang Chen & Xiaoyu Chen & Huan Yang & Zengyi Du & Xiyu Zhu & Enyu Wang & Hai-Hu Wen, 2018. "Discrete energy levels of Caroli-de Gennes-Matricon states in quantum limit in FeTe0.55Se0.45," Nature Communications, Nature, vol. 9(1), pages 1-7, December.
    Full references (including those not matched with items on IDEAS)

    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. Yungi Jeong & Hangyeol Park & Taeho Kim & Kenji Watanabe & Takashi Taniguchi & Jeil Jung & Joonho Jang, 2024. "Interplay of valley, layer and band topology towards interacting quantum phases in moiré bilayer graphene," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    2. M. Uldemolins & A. Mesaros & G. D. Gu & A. Palacio-Morales & M. Aprili & P. Simon & F. Massee, 2024. "Hund’s coupling mediated multi-channel quantum phase transition of a single magnetic impurity in Fe(Se, Te)," Nature Communications, Nature, vol. 15(1), pages 1-7, December.
    3. Gang Qiu & Hung-Yu Yang & Lunhui Hu & Huairuo Zhang & Chih-Yen Chen & Yanfeng Lyu & Christopher Eckberg & Peng Deng & Sergiy Krylyuk & Albert V. Davydov & Ruixing Zhang & Kang L. Wang, 2023. "Emergent ferromagnetism with superconductivity in Fe(Te,Se) van der Waals Josephson junctions," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    4. June-Young M. Lee & H.-S. Sim, 2022. "Non-Abelian anyon collider," Nature Communications, Nature, vol. 13(1), pages 1-6, December.
    5. Haoyun Huang & Waseem Hussain & S. A. Myers & L. N. Pfeiffer & K. W. West & K. W. Baldwin & G. A. Csáthy, 2024. "Evidence for Topological Protection Derived from Six-Flux Composite Fermions," Nature Communications, Nature, vol. 15(1), pages 1-6, December.
    6. Rustem Khasanov & Bin-Bin Ruan & Yun-Qing Shi & Gen-Fu Chen & Hubertus Luetkens & Zhi-An Ren & Zurab Guguchia, 2024. "Tuning of the flat band and its impact on superconductivity in Mo5Si3−xPx," Nature Communications, Nature, vol. 15(1), pages 1-6, December.
    7. Jiaojie Yan & Yijia Wu & Shuai Yuan & Xiao Liu & L. N. Pfeiffer & K. W. West & Yang Liu & Hailong Fu & X. C. Xie & Xi Lin, 2023. "Anomalous quantized plateaus in two-dimensional electron gas with gate confinement," Nature Communications, Nature, vol. 14(1), pages 1-6, December.
    8. Sujoy Karan & Haonan Huang & Alexander Ivanovic & Ciprian Padurariu & Björn Kubala & Klaus Kern & Joachim Ankerhold & Christian R. Ast, 2024. "Tracking a spin-polarized superconducting bound state across a quantum phase transition," Nature Communications, Nature, vol. 15(1), pages 1-7, December.
    9. J. Nakamura & S. Liang & G. C. Gardner & M. J. Manfra, 2022. "Impact of bulk-edge coupling on observation of anyonic braiding statistics in quantum Hall interferometers," Nature Communications, Nature, vol. 13(1), pages 1-9, 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:14:y:2023:i:1:d:10.1038_s41467-023-39109-w. 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.