Dresden 2017 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 66: Poster 3

MA 66.5: Poster

Freitag, 24. März 2017, 09:30–13:00, P2-OG2

Optical detection of ferromagnetic resonance via photoluminescence in diamond NV-centers — Martin Wagener, •Chris Koerner, and Georg Woltersdorf — Martin-Luther-University Halle-Wittenberg, Institute of Physics, von-Danckelmann-Platz 3, 06120 Halle(Saale), Germany

We optically detect electron spin resonance in nanoscale diamonds with NV-centers by photoluminescence measurements (ODMR). When the nano-diamonds are dispersed on top of an yttrium iron garnet (YIG) film the ferromagnetic resonance (FMR) of YIG becomes visible in the ODMR signal. This effect has previously been observed by Wolfe et al. [1,2]. Our work intends to unravel the physical origin of the cross coupling between FMR in YIG and the ODMR in the diamond NV-centers. In doing so we investigate the material dependence, the influence of spacer layers, and the frequency or field dependence of the coupling in the ODMR signal.

[1] C. S. Wolfe et al. Phys. Rev. B 89, 180406 (2014)

[2] C. S. Wolfe et al. ArXiv 1512.05418v2 (2016)