The structure of the alkali-metal-induced reconstructed Cu(110)-(1×{}2) surface has been analyzed by use of low-energy electron diffraction. A missing-row model, a row-pairing model, and a sawtooth model have all been examined. The results confirm the missing-row model for the reconstruction with no long-range order for the alkali-metal atoms. The top interlayer spacing of the reconstructed Cu(110) surface is contracted by 11% and the second layer exhibits a lateral pairing displacement of 0.10 {}.
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Hu et al. (1990) studied this question.
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