Supplementary information

From the following article

Experimental realization of suspended atomic chains composed of different atomic species

J. Bettini, F. Sato, P. Z. Coura, S. O. Dantas, D. S. Galvão & D. Ugarte

Nature Nanotechnology 1, 182 - 185 (2006) Published online: 19 November 2006

doi:10.1038/nnano.2006.132