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Physical Review Letters
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.
G. Binnig, K.H. Frank, et al.
Physical Review Letters
D.G. Schlom, D. Anselmetti, et al.
Journal of Crystal Growth
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Applied Physics Letters
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Biophysical Journal