TEM images, atomic model and FFT pattern. (a) Typical TEM images of the 3-D superlattice of Pd NPs with the size of about 8 nm. (b) TEM image of the region indicated by the box in (a). (c) Atomic model with the close-packed structure. (d) FFT pattern of the region indicated by the box in (b).
Zhang et al. Nanoscale Research Letters 2012 7:312 doi:10.1186/1556-276X-7-312