Fig. 1From: Ion-Beam-Directed Self-Ordering of Ga Nanodroplets on GaAs Surfaces a Illustration of the experiment setup. The AFM images, 2D-FFT spectra, and AFM line profiles of Ga nanodroplets formed on the GaAs surfaces with six different ion beam incident angles: b 0°, c 13°, d 25°, e 37°, f 50°, and g 55°. The ion beam current is 0.93 nA, and sputtering time is 5 minBack to article page