Regensburg 2019 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 15: Magnetism Poster A
MA 15.29: Poster
Dienstag, 2. April 2019, 10:00–13:00, Poster E
Towards nanoscale magnetic resonance imaging using single spins in diamond — •Tetyana Shalomayeva1, Dominik Schmid-Lorch1, Thomas Oeckinghaus1, Qi-Chao Sun1, Rainer Stöhr1, and Jörg Wrachtrup1,2 — 13rd Institute of Physics, University of Stuttgart — 2Max Planck Institute for Solid State Research
Due to amazing advances in the development of 2D magnetic materials [1], Heusler compounds [2], multiferroic materials [3], etc., the need for quantitative real-space imaging techniques of magnetic textures is greater than ever before. We use the nitrogen vacancy (NV) centre in diamond as an atom-sized magnetic field sensor by monitoring the Zeeman-shift of its spin sublevels. By integrating the NV centre into an AFM tip consisting of a diamond cantilever with a monolithic nanopillar, magnetic field maps with a spatial resolution of tens of nanometers are obtained at ambient conditions.
In this contribution, we will demonstrate the general principle of this technique by emphasizing its strengths and limitations. We will show examples where we measure quantities such as noise and excitation spectra, which are inaccessible to other techniques.
[1] M. Bonilla et al. Nature Nanotechnology 13, 289*293 (2018) [2] A.K. Nayak et al. Nature 548, 561*566 (2017) [3] J.A. Mundy et al. Nature 537, 523*527 (2016)