Fig. 3
From: Long-distance propagation of short-wavelength spin waves
Dispersion relations for propagating short-wavelength spin waves. a Data points show the frequencies and wavenumbers of different spin-wave modes extracted from the experiments on device A1—YIG/Ti/Co with a = 200 nm (black squares), device A2—YIG/Ti/Co with a = 180 nm (purple dots), and device C1—YIG/Ti/CoFe with a = 200 nm (green diamonds). The red curve shows the dispersion relation of the DE spin wave in the YIG thin film, which is calculated using Eq. (2) for a field of 1000 Oe. The inset shows the transmission spectra S21 for the n = 8 PSWSW mode detected in device C1. b Micromagnetic simulation results of the dispersion relation for the YIG/Ti/Co structure with a period of a = 200 nm. The simulation takes into account the interlayer dipolar interactions between the Co and the YIG, but not direct interlayer exchange coupling
