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Fast nanoscale addressability of nitrogen-vacancy spins via coupling to a dynamic ferromagnetic vortex

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  • M. S. Wolf

    (Case Western Reserve University)

  • R. Badea

    (Case Western Reserve University)

  • J. Berezovsky

    (Case Western Reserve University)

Abstract

The core of a ferromagnetic vortex domain creates a strong, localized magnetic field, which can be manipulated on nanosecond timescales, providing a platform for addressing and controlling individual nitrogen-vacancy centre spins in diamond at room temperature, with nanometre-scale resolution. Here, we show that the ferromagnetic vortex can be driven into proximity with a nitrogen-vacancy defect using small applied magnetic fields, inducing significant nitrogen-vacancy spin splitting. We also find that the magnetic field gradient produced by the vortex is sufficient to address spins separated by nanometre-length scales. By applying a microwave-frequency magnetic field, we drive both the vortex and the nitrogen-vacancy spins, resulting in enhanced coherent rotation of the spin state. Finally, we demonstrate that by driving the vortex on fast timescales, sequential addressing and coherent manipulation of spins is possible on ∼100 ns timescales.

Suggested Citation

  • M. S. Wolf & R. Badea & J. Berezovsky, 2016. "Fast nanoscale addressability of nitrogen-vacancy spins via coupling to a dynamic ferromagnetic vortex," Nature Communications, Nature, vol. 7(1), pages 1-7, September.
  • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms11584
    DOI: 10.1038/ncomms11584
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