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MA: Fachverband Magnetismus
MA 57: Posters Magnetism II
MA 57.37: Poster
Donnerstag, 19. März 2020, 15:00–18:00, P3
The spectrum of a single molecular electron spin qubit — •Tim Dierker1, Dinesh Pinto2,3, and Wolfgang Harneit1 — 1University of Osnabrück — 2Max Planck Institute for Solid State Research, Stuttgart — 3Institut de Physique, École Polytechnique Fédérale de Lausanne
A single-spin electron paramagnetic resonance (EPR) measurement of N@C60 within a C60 matrix using a single near surface nitrogen vacancy (NV) center was realized at low temperatures. Utilizing optically detected magnetic resonance (ODMR) a double electron-electron resonance (DEER) spectrum was obtained, showing a hyperfine structure reminiscent of N@C60 but slightly distorted [1]. The features of the measured spectrum are compared to theoretical calculations resulting from second order perturbation theory. Here especially the possibilities for asymmetric splitting are investigated for zero-field splitting and non-isotropic hyperfine effects containing orientational dependencies.
[1] Dinesh Pinto, Domenico Paone, Bastian Kern, Tim Dierker, René Wieczorek, Durga Dasari, Amit Finkler, Wolfgang Harneit, Jörg Wrachtrup, and Klaus Kern, Readout and control of a single endofullerene electronic spin, to be published (submitted to ncomms)