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Long distance spin communication in chemical vapour deposited graphene

Author

Listed:
  • M. Venkata Kamalakar

    (Quantum Device Physics Laboratory, Chalmers University of Technology)

  • Christiaan Groenveld

    (Quantum Device Physics Laboratory, Chalmers University of Technology)

  • André Dankert

    (Quantum Device Physics Laboratory, Chalmers University of Technology)

  • Saroj P. Dash

    (Quantum Device Physics Laboratory, Chalmers University of Technology)

Abstract

Graphene is an ideal medium for long-distance spin communication in future spintronic technologies. So far, the prospect is limited by the smaller sizes of exfoliated graphene flakes and lower spin transport properties of large-area chemical vapour-deposited (CVD) graphene. Here we demonstrate a high spintronic performance in CVD graphene on SiO2/Si substrate at room temperature. We show pure spin transport and precession over long channel lengths extending up to 16 μm with a spin lifetime of 1.2 ns and a spin diffusion length ∼6 μm at room temperature. These spin parameters are up to six times higher than previous reports and highest at room temperature for any form of pristine graphene on industrial standard SiO2/Si substrates. Our detailed investigation reinforces the observed performance in CVD graphene over wafer scale and opens up new prospects for the development of lateral spin-based memory and logic applications.

Suggested Citation

  • M. Venkata Kamalakar & Christiaan Groenveld & André Dankert & Saroj P. Dash, 2015. "Long distance spin communication in chemical vapour deposited graphene," Nature Communications, Nature, vol. 6(1), pages 1-8, November.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms7766
    DOI: 10.1038/ncomms7766
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    Cited by:

    1. B. G. Márkus & M. Gmitra & B. Dóra & G. Csősz & T. Fehér & P. Szirmai & B. Náfrádi & V. Zólyomi & L. Forró & J. Fabian & F. Simon, 2023. "Ultralong 100 ns spin relaxation time in graphite at room temperature," Nature Communications, Nature, vol. 14(1), pages 1-7, December.

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