O.K. Binnig, H. Rohrer, et al.
Surface Science
The 7 × 7 reconstruction on Si(111) was observed in real space by scanning tunneling microscopy. The experiment strongly favors a modified adatom model with 12 adatoms per unit cell and an inhomogeneously relaxed underlying top layer. © 1983 The American Physical Society.
O.K. Binnig, H. Rohrer, et al.
Surface Science
A.M. Baró, R. Miranda, et al.
Nature
H.J. Scheel, G. Binning, et al.
Journal of Crystal Growth
G. Binnig, H. Rohrer
ICPS Physics of Semiconductors 1984