Extended Data Fig. 2: The effect of the wavelength on creation of skyrmions.
From: Creation of magnetic skyrmions by surface acoustic waves
a, Magnetic field dependence of nsk before and after exciting a SAW with various wavelengths of SAW. b, The ratio of skyrmion density before and after exciting SAW with various wavelengths. The ratio for λSAW=16 μm is the largest among the four wavelengths as in the case of the difference of skyrmion density (Δnsk) (Fig. 3a in the main text), which further supports that the creation efficiency of skyrmions for the SAW with λSAW=16 μm is higher than that with λSAW=8 and 32 μm. The error bars correspond to the standard deviation.
