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.

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Binnig et al. (Mon,) studied this question.

synapsesocial.com/papers/69dadb8c1e19c8ae08835a2c https://doi.org/https://doi.org/10.1103/physrevlett.50.120

Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

1New Hexagonal Ring Model for the Reconstruction of the Si(111)-7 × 7 Surface1982 · 15 citations
2Observations of “Clean” Surfaces of Si, Ge, and GaAs by Low-Energy Electron Diffraction1965 · 213 citations
3Surface reconstruction on semiconductors1976 · 320 citations
4Evaluation of recent Si(111)-(7 × 7) surface models1981 · 22 citations
5Progress in solid-state chemistry1966 · 574 citations

Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

1New Hexagonal Ring Model for the Reconstruction of the Si(111)-7 × 7 Surface1982 · 15 citations
2Observations of “Clean” Surfaces of Si, Ge, and GaAs by Low-Energy Electron Diffraction1965 · 213 citations
3Surface reconstruction on semiconductors1976 · 320 citations
4Evaluation of recent Si(111)-(7 × 7) surface models1981 · 22 citations
5Progress in solid-state chemistry1966 · 574 citations

Si(111)에서의 7 × 7 재구성: 실제 공간에서의 관찰 | Synapse