Regensburg 2022 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 28: Magnonics 2
MA 28.11: Vortrag
Donnerstag, 8. September 2022, 12:00–12:15, H43
Hybrid magnon-quantum spin defects system in SiC — •Mauricio Bejarano1,2, Francisco J. T. Goncalves3, Toni Hache4, Michael Hollenbach1,2, Christopher Heins1, Tobias Hula1,5, Yonder Berencén1, Georgy V. Astakhov1, and Helmut Schultheiss1 — 1Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany — 2Technische Universität Dresden, Dresden, Germany — 3X-Fab, Dresden, Germany — 4Max Planck Institute for Solid State Research, Stuttgart, Germany — 5Technische Universität Chemnitz, Chemnitz, Germany
Hybrid magnon-quantum spins systems have been gathering scientific interest in the last years due to their increased coupling strength, scalability down to the nanoscale regime and their potential as energy efficient quantum buses. While magnon-mediated control of quantum spins has been demonstrated with NV-centers in diamond, it has remained elusive on the silicon carbide (SiC) platform mainly due to the absence of a resonance overlap between the magnetic system and the spin-defect center. Here we circumvent this challenge by harnessing non-linear magnon scattering processes taking place in a magnetic vortex to access spin-wave eigenmodes that overlap with the intrinsic resonance of silicon vacancy defect centers in 4H-SiC. Our results offer a route to develop hybrid magnon-quantum spins systems that benefit from the electrical and optical properties of SiC for future quantum computing applications. This work was supported in part by the German Research Foundation under Grants SCHU 2922/4-1 and AS 310/9-1.