Nucleation of β-FeSi2 nanostructures at pinned step bunches on the Si(111) surface

Brady, R. P.; Sharma, A. S.; Giblet, R. L.; Cottier, R. J.; Golding, T. D.; Perez, J. M.
May 2005
Applied Physics Letters;5/30/2005, Vol. 86 Issue 22, p223102
Academic Journal
We report the preferential nucleation and synthesis of β-FeSi2 nanostructures at pinned step bunches on the Si(111) surface. The nanostructures are synthesized by depositing Fe on Si at room temperature and subsequent annealing. The surface topography is studied using scanning tunneling microscopy and atomic force microscopy. The size, shape and orientation of the nanostructures indicate that the phase is the semiconducting β-FeSi2 phase.


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