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Paper
New dimerized-chain model for the reconstruction of the diamond (111)-(2 × 1) surface
Abstract
Of the relaxed, graphitic, buckled, and -bonded-chain-type models for the diamond (111)-(2 × 1) surface, only the chain model appears to account for the measured surface-band dispersion. The interaction of dangling orbitals which determines the dispersion is large in the chain model because only in this model are the dangling bonds located on nearest-neighbor atoms. The data also suggest a dimerization of the chains. © 1982 The American Physical Society.