M. Gothelid et al., FORMATION OF AN IODINE ZIGZAG CHAIN C(2X4) RECONSTRUCTION ON THE GE(111) SURFACE, Microscopy microanalysis microstructures, 5(4-6), 1994, pp. 277-282
Room temperature adsorption of I-2 on the Ge(lll) surface is found to
break the initial c(2 x 8) adatom reconstruction as iodine preferentia
lly occupies the on top substrate site, breaks the backbonds between t
he adatom and the substrate and thus removes the Ge adatoms. As this p
rocess continues a c(2 x 4), and modifications thereof, reconstruction
is formed consisting of chains of I-2 molecules bound in almost T-1 s
ites with a I-I bond length of 3.6 Angstrom.