Large Co Cluster Deposition on Naturally and Artificially Patterned Substrates

Dong-Liang Peng (1) , Gilles Lerondel (2) , Takehiko Hihara (1) , Kenji Sumiyama (1) , Takafumi Yao (2)

1 NIT - Nagoya Institute of Technology
2 Tohoku University [Sendai]

Monodispersed Co clusters with mean cluster diameter d=13 nm have been deposited on a stepped graphite surface and a lithography-patterned Si wafer using a plasma-gas-condensation cluster beam deposition apparatus. High-resolution scanning electron microscope observation indicates that 1) cluster aggregation is much more limited at the steps than on the flat terrace regions of the graphite surface, and 2) cluster density is much higher in the grooves than on the flat top of the lithography-patterned Si wafers. These results suggest the possibility of the regular arrangement of monodispersed Co clusters if the pattern size (the width of grooves and tops) is comparable with the cluster size.

Domaines: Optique / photonique

Dong-Liang Peng, Gilles Lerondel, Takehiko Hihara, Kenji Sumiyama, Takafumi Yao. Large Co Cluster Deposition on Naturally and Artificially Patterned Substrates. Japanese Journal of Applied Physics, 2002, 41 (Part 1, No. 9), pp.5726-5729. ⟨10.1143/JJAP.41.5726⟩. ⟨hal-02865943⟩