Nanoscale nuclear magnetic resonance with chemical structure resolution

ORAL

Abstract

The nitrogen-vacancy (NV) center in diamond has recently proven its capability as a nanoscale nuclear magnetic resonance (NMR) sensor. Compared to the required number of nuclear spins in conventional NMR, NV nanoscale NMR has been able to detect a sample containing a 12 orders of magnitude smaller number of nuclear spins. For chemical structure analysis however the spectral resolution is the crucial parameter and so far it has been challenging to achieve the required resolution.

In the measurement protocol the NV electron spin sensor is entangled with the intrinsic nuclear spin acting as the quantum memory. This novel sensor-memory system operates at a high magnetic field and enables a measurement time in the minutes-scale. As a result, for liquid samples a chemical shift resolution of ~1 part per million is achieved in 1H and 19F NMR spectroscopy of 20-zeptoliter sample volumes. Furthermore the tracking of sensor-to-sample spin interaction allows the measurement and analysis of spatial diffusion. In addition high-resolution solid-state NMR is performed by applying homonuclear decoupling and achieving a 20-fold narrowing of the NMR linewidth. The technique also allows spin diffusion measurement in solids. Finally possible improvements of NV nanoscale NMR are discussed.

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Presenters

  • Nabeel Aslam

    University Stuttgart, Physics, University of Stuttgart, Physics Department, University of Stuttgart

Authors

  • Nabeel Aslam

    University Stuttgart, Physics, University of Stuttgart, Physics Department, University of Stuttgart

  • Matthias Pfender

    University Stuttgart, Physics Department, University of Stuttgart

  • Philipp Neumann

    University Stuttgart, 3rd Institute of Physics, University of Stuttgart, Physics Department, University of Stuttgart

  • Rolf Reuter

    Physics Department, University of Stuttgart

  • Andrea Zappe

    3. Physikalisches Institut, Universität Stuttgart, Physics Department, University of Stuttgart

  • Felipe Fávaro de Oliveira

    3. Physikalisches Institut, Universität Stuttgart, Physics Department, University of Stuttgart

  • Andrej Denisenko

    3rd Institute of Physics, University of Stuttgart, Physics Department, University of Stuttgart

  • Hitoshi Sumiya

    Sumitomo Electric Industries

  • Shinobu Onada

    National Institutes for Quantum and Radiological Science and Technology

  • Junichi Isoya

    Research Center for Knowledge Communities, University of Tsukuba

  • J. Wrachtrup

    University Stuttgart, 3. Physikalisches Institut, Universität Stuttgart, Univ Stuttgart, 3rd Institute of Physics, University of Stuttgart, University of Stuttgart, Physics Department, University of Stuttgart