Diffusion-driven crystal structure transformation: synthesis of Heusler alloy Fe3Si nanowires.
We report fabrication of Heusler alloy Fe(3)Si nanowires by a diffusion-driven crystal structure transformation method from paramagnetic FeSi nanowires. Magnetic measurements of the Fe(3)Si nanowire ensemble show high-temperature ferromagnetic properties with T(c) >> 370 K. This methodology is also successfully applied to Co(2)Si nanowires in order to obtain metal-rich nanowires (Co) as another evidence of the structural transformation process. Our newly developed nanowire crystal transformation method would be valuable as a general method to fabricate metal-rich silicide nanowires that are otherwise difficult to synthesize.
Seo
Kwanyong
K
Department of Chemistry, KAIST, Daejeon 305-701, Korea.
Bagkar
Nitin
N
Kim
Si-in
SI
In
Juneho
J
Yoon
Hana
H
Jo
Younghun
Y
Kim
Bongsoo
B