Fig. 5
From: Ion-Beam-Directed Self-Ordering of Ga Nanodroplets on GaAs Surfaces
a The SEM image of Ga nanodroplets form around a square area irradiated by ion beam. b The SEM image of directed assembly of Ga nanodroplets via in situ ion beam patterning. c SEM images of nanodroplet chains forming on ridges of 0.4, 0.8, 1.2, 1.6, and 2.0 μm. The incident angle is normal to the sample surface in a and b and 35° in c. The bombardment time is 1 min. The scale bars are 2 μm