Fig. 4: Enhancement and electrical turnability of the effective nitrogen vacancy spin rotation frequency by propagating spin waves. | npj Quantum Information

Fig. 4: Enhancement and electrical turnability of the effective nitrogen vacancy spin rotation frequency by propagating spin waves.

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

Fig. 4

a Normalized nitrogen vacancy (NV) spin rotation rate \(f_{{\mathrm{Rabi}}}/\sqrt P\) measured as a function of \(f_ -\) in the low magnetic field (red curve) and high magnetic field (gray curve) regimes. Inset: the variation of the NV electron spin resonance frequencies \(f_ \pm\) (black curves) and the resonant frequencies of propagating surface spin waves (green curves) as a function of Bext. b \(f_{{\mathrm{Rabi}}}(J_c)/f_{{\mathrm{Rabi}}}(J_c = 0)\) measured as a function of Jc at the resonant condition of k1 (red points) and k2 (blue points) spin wave modes. The red and blue curves plot the theoretical prediction based on the spin-orbit-torque-model.

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