Abstract
High-purity nanocables of iron-containing amorphous-silica-sheathed silicon carbide were synthesized by a thermal reaction method using silicon wafer as the silicon source and growth substrate, and ferrocene as the carbon and iron catalyst precursor. The nanocables were tens of
μ
m
in length and
40
-
60
nm
in diameter. Iron oxide nanoparticles with a mean diameter of
5
nm
were dispersed evenly in the amorphous silica layer. The nanocables were found to be ferromagnetic at both
10
K
and room temperature, which indicates that they may have important potential applications in electromagnetic nanodevices.