Figure 2From: Ion beam-generated surface ripples: new insight in the underlying mechanismAFM images for the 50 keV Ar+-irradiated set A and set B samples at an angle of 60°. At the fluences of 3 × 1017(a,e), 5 × 1017(b,f), 7 × 1017(c,g), and 9 × 1017 ions per square centimeter (d,h), respectively. The arrows in the figures indicate the projection of ion beam direction on the surface.Back to article page