Fig. 2From: Atom Diffusion and Evaporation of Free-Ended Amorphous SiOx Nanowires: Nanocurvature Effect and Beam-Induced Athermal Activation EffectSchematic illustration showing the directional surface diffusion and the preferential surface evaporation of atoms driven by nanocurvature effect: a free end with cut sharp edge case and b free end of hemisphere shape caseBack to article page