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HL: Fachverband Halbleiterphysik
HL 39: Posters II (Topological insulators; Graphene; Spintronics and spin physics; Quantum information science)
HL 39.27: Poster
Dienstag, 17. März 2015, 14:00–20:00, Poster F
NMR spectroscopy with single spin sensitivity — •Himadri Chatterjee1, Christoph Müller1, Xi Kong1,2, Jiangming Cai3, Junichi Isoya4, Jiangfeng Du2, Martin Plenio3, Boris Naydenov1, Liam McGuinness1, and Fedor Jelezko1 — 1Institute for Quantum Optics, Ulm University, Albert-Einstein-Allee 11, Ulm 89081, Germany — 2Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China — 3Institute for Theoretical Physics, Albert-Einstein Allee 11, University of Ulm, Ulm D-89081, Germany — 4Research Center for Knowledge Communities, University of Tsukuba, 1-2 Kasuya, Tsukuba, Ibaraki 305-8550 Japan
Nitrogen-vacancy (NV) centres in diamond located as close as a few nanometers to the diamond surface were exploit as a NMR quantum sensor to detect signals from strongly coupled nuclear spins placed on the surface. We achieved depth calibration for the NV in the range of tenth of nanometers by using 1-H spins and detection of down to 4 individual spins by using 29-Si. Using advanced techniques from signal processing (compressed sensing) the location of these spins could be calculated with Angström resolution.