Figure 1

Schematics of the experiments and pictures and micrographs of fuzzy fur like materials. (a) Schematic of the experimental setup. (b) Schematic of the sample exposed to ions. (c,d) Pictures of W large-scale fuzz on W substrate for the irradiation time, t, of 3600 s from top and side. The sample temperature, T _s, the incident ion energy, E _i, and the ion fluence, Φ, were 1200 K, 70 eV, and 1.8 × 10²⁵ m⁻², respectively. (e,f) Pictures of Mo large-scale fuzzy nanostructures, and the irradiation conditions were T _s of 1250 K, E _i of 70 eV, and Φ of 2.0 × 10²⁵ m⁻². (g–i) Optical microscope micrographs of W large-scale fuzzy nanostructures. The irradiation conditions were T _s of 1300 K, E _i of 70 eV, and Φ of 2.8 × 10²⁵ m⁻². Scale bar in (c–f) and (g–i) represents 2 and 0.1 mm, respectively.