Figure 5

TEM:a BFI of a tapered ZnO whisker with ledges and twinning;b Lattice image from the square region ina coupled withc forward- andd inverse Fourier transform from the square region inb, showing lamellae fringes due to superimposition of the bicrystals twinned over a nearly horizontal twin plane in zone axis. The inserted atomic simulation of two slabs 2 nm in thickness superimposed by 52.2 degree off ind indeed shows lamellae-like fringes with corresponding twin spots (denoted as t) in the simulated diffraction pattern ine. The same specimen as in Fig. 3b