American Chemical Society
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Fabrication of Isolated Iron Nanowires

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journal contribution
posted on 2023-09-18, 18:44 authored by David C. Grinter, Bobbie-Jean A. Shaw, Chi L. Pang, Chi-Ming Yim, Christopher A. Muryn, Charlotte A. Hall, Francesco Maccherozzi, Sarnjeet S. Dhesi, Masahiko Suzuki, Tsuneo Yasue, Takanori Koshikawa, Geoff Thornton
Nanoscale interconnects are an important component of molecular electronics. Here we use X-ray spectromicroscopy techniques as well as scanning probe methods to explore the self-assembled growth of insulated iron nanowires as a potential means of supplying an earth abundant solution. The intrinsic anisotropy of a TiO2(110) substrate directs the growth of micron length iron wires at elevated temperatures, with a strong metal–support interaction giving rise to ilmenite (FeTiO3) encapsulation. Iron nanoparticles that decorate the nanowires display magnetic properties that suggest other possible applications.