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X-ray diffraction curve of the nanorods grown on (0001) substrates, which is plotted in a logarithm scale.
Bright-field transmission electron microscopy image of the nanorods grown on the (0001) substrates. The inset indicates a selected area electron diffraction pattern, taken along the zone axis of the nanorods.
High-resolution transmission electron microscopy images of (a) the (0001) substrate heterointerface region and (b) the tip region of the nanorods.
(a) High-resolution transmission electron microscopy image of the interface region. The arrows indicate the extra half planes at a heterointerface. (b) Atomic arrangements for the nanorods grown on the (0001) substrate.
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