The initial growth stage of the single-crystalline Sb and Co nanowires with preferential orientation was studied, which were synthesized in porous anodic alumina membranes by the pulsed electrodeposition technique. It was revealed that the initial growth of the nanowires is a three-dimensional nucleation process, and then gradually transforms to two-dimensional growth via progressive nucleation mechanism, which resulting in a structure transition from polycrystalline to single crystalline. The competition among the nuclei inside the nanoscaled-confined channel and the growth kinetics is responsible for the structure transition of the initial grown nanowires.

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Absolute cross sections for single-electron transfer of neon induced by C3+ at intermediate velocity (2.2v0—4.2v0) were measured and calculated using n-body classical trajectory Monte Carlo (nCTMC) method. Good overall agreement between experimental and nCTMC results is found. Screening effect, changes of the ionization potential and the effective charge are taken into account in interpreting the qualitative differences between theoretical and experimental results. In addition, the mechanism of transfer ionization is discussed briefly.