IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v3y2012i1d10.1038_ncomms2227.html
   My bibliography  Save this article

Giant Rashba splitting in graphene due to hybridization with gold

Author

Listed:
  • D. Marchenko

    (Helmholtz-Zentrum Berlin für Materialien und Energie, Elektronenspeicherring BESSY II)

  • A. Varykhalov

    (Helmholtz-Zentrum Berlin für Materialien und Energie, Elektronenspeicherring BESSY II)

  • M.R. Scholz

    (Helmholtz-Zentrum Berlin für Materialien und Energie, Elektronenspeicherring BESSY II)

  • G. Bihlmayer

    (Peter Grünberg Institut and Institute for Advanced Simulation, Forschungszentrum Jülich and JARA)

  • E.I. Rashba

    (Harvard University)

  • A. Rybkin

    (Institute of Physics, St Petersburg State University)

  • A.M. Shikin

    (Institute of Physics, St Petersburg State University)

  • O. Rader

    (Helmholtz-Zentrum Berlin für Materialien und Energie, Elektronenspeicherring BESSY II)

Abstract

Graphene in spintronics is predominantly considered for spin current leads of high performance due to weak intrinsic spin–orbit coupling of the graphene π electrons. Externally induced large spin–orbit coupling opens the possibility of using graphene in active elements of spintronic devices such as the Das-Datta spin field-effect transistor. Here we show that Au intercalation at the graphene–Ni interface creates a giant spin–orbit splitting (~100 meV) of the graphene Dirac cone up to the Fermi energy. Photoelectron spectroscopy reveals the hybridization with Au 5d states as the source for this giant splitting. An ab initio model of the system shows a Rashba-split spectrum around the Dirac point of graphene. A sharp graphene–Au interface at the equilibrium distance accounts for only ~10 meV spin–orbit splitting and enhancement is due to the Au atoms in the hollow position that get closer to graphene and do not break the sublattice symmetry.

Suggested Citation

  • D. Marchenko & A. Varykhalov & M.R. Scholz & G. Bihlmayer & E.I. Rashba & A. Rybkin & A.M. Shikin & O. Rader, 2012. "Giant Rashba splitting in graphene due to hybridization with gold," Nature Communications, Nature, vol. 3(1), pages 1-6, January.
    • Handle: RePEc:nat:natcom:v:3:y:2012:i:1:d:10.1038_ncomms2227
    DOI: 10.1038/ncomms2227
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/ncomms2227
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/ncomms2227?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. Jonghyeon Choi & Jungmin Park & Seunghyeon Noh & Jaebyeong Lee & Seunghyun Lee & Daeseong Choe & Hyeonjung Jung & Junhyeon Jo & Inseon Oh & Juwon Han & Soon-Yong Kwon & Chang Won Ahn & Byoung-Chul Min, 2024. "Non-volatile Fermi level tuning for the control of spin-charge conversion at room temperature," Nature Communications, Nature, vol. 15(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:3:y:2012:i:1:d:10.1038_ncomms2227. 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.