Fig. 1: Ferromagnetic resonance assisted nitrogen vacancy spin rotation. | npj Quantum Information

Fig. 1: Ferromagnetic resonance assisted nitrogen vacancy spin rotation.

From: Electrical control of coherent spin rotation of a single-spin qubit

Fig. 1

a Schematic of an nitrogen vacancy (NV) spin positioned on top of a patterned Y3Fe5O12 (20 nm)/Pt (10 nm) strip to investigate the amplification and electrical tuning effect of the NV spin rotation rate at the Y3Fe5O12 (YIG) ferromagnetic resonance (FMR) condition. b A photoluminescence (PL) image showing an overview of a fabricated device consisting of an Au stripline (false yellow color) and a diamond nanobeam containing individually addressable NV spins on top of the YIG/Pt strip (false-silver color). The scale bar corresponds to 5 µm. c Normalized PL intensity of NV1 measured as a function of Bext and microwave frequency f. The black straight lines represent the NV electron spin resonance transitions in the electronic ground (excited) state and the white dash line represents the field dispersion curve of the YIG FMR mode. The time-dependent PL intensity of NV1 measured at d \(f_ - = f_{{\mathrm{FMR}}}\) ± 50 Hz and e \(f_ - = f_{{\mathrm{FMR}}}\).

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