Covalent Superlattice Structures at Silicon (111) Surfaces
- 10 June 1974
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 32 (23) , 1315-1318
- https://doi.org/10.1103/physrevlett.32.1315
Abstract
Low-energy electron-diffraction and photoemission data are presented for Si(111) surfaces with 2 × 1 and 7 × 7 superlattices, as well as for the disordered surface obtained in the transition from one to the other. Together with work-function measurements these data suggest two different models for the two superlattices.Keywords
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