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Physica C: Superconductivity and its applications
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.
D.G. Schlom, D. Anselmetti, et al.
Physica C: Superconductivity and its applications
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