Dresden 2014 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 30: Experimental methods and magnetic imaging
MA 30.7: Vortrag
Mittwoch, 2. April 2014, 16:45–17:00, HSZ 403
A magnetic resonance microscope based on nitrogen-vacancy center in diamond for nanoscale imaging of nuclear spins — Phani Peddibhotla1, Alexander Gerstmayr1, Dominik Reitzle2, Boris Naydenov1, Berndt Koslowski2, and •Fedor Jelezko1 — 1Institut für Quantenoptik, Universität Ulm, Albert-Einstein-Allee 11, D-89081 Ulm, Germany — 2Institut für Festkörperphysik, Universität Ulm, Albert-Einstein-Allee 11, D-89069 Ulm, Germany
We report on the development of a scanning probe microscope using nitrogen-vacancy (NV) center in diamond that operates under ambient conditions. Our nuclear magnetic resonance imaging setup comprises of an atomic force microscope (AFM) integrated into an optical confocal microscope . The nanoscale sample under study, containing nuclear spins, is attached onto the tip of an AFM cantilever. The tip is positioned close to a shallow implanted NV center in isotopically purified carbon-12 diamond. Optical readout of the spin quantum state of the NV center encodes information about the magnetic dipolar interaction of sample nuclear spins with the NV electronic spin. Monitoring the fluorescence of the NV center while mechanically scanning the diamond sample with respect to the cantilever tip in three dimensions provides data that could allow the reconstruction of nuclear spin density.