Jl. Lin et al., Self-assembled Fe nanowires using organometallic chemical vapor depositionand CaF2 masks on stepped Si(111), APPL PHYS L, 78(6), 2001, pp. 829-831
Linear arrays of 3 nm wide Fe stripes with 15 nm spacing are fabricated by
self-assembly. They are formed by photolysis of ferrocene that is selective
ly adsorbed between CaF2 stripes. An ultraviolet nitrogen laser removes the
organic ligands from ferrocene. Arrays of CaF2 stripes serve as masks, whi
ch are self-assembled on a stepped Si(111) surface. Scanning tunneling micr
oscopy is used to investigate the surface morphology during growth. A gener
alization of this method to other wire materials is discussed. (C) 2001 Ame
rican Institute of Physics.