Oriented growth of single-crystal Ni nanowires onto amorphous SiO₂.

Chan, Keith T; Kan, Jimmy J; Doran, Christopher; Ouyang, Lu; Smith, David J; Fullerton, Eric E · Nano Lett · 2010

basic_science · Level V

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Abstract

Highly oriented, single-crystal Ni nanowire arrays have been synthesized atop amorphous SiO2∥Si substrates using a single-step chemical vapor deposition method in the absence of any foreign catalyst. Electron and X-ray diffraction confirm the crystalline quality of the Ni nanowires while magnetoresistance measurements probe the magnetic response and the behavior is explained using simulation results for nanoscale, single-crystal Ni. A growth mechanism involving competing chemical, energetic, and kinetic influences is presented.