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The atomic geometry of the CuCl(110)-(1×{}1) surface is determined by dynamical analysis of low-energy electron-diffraction intensities. This surface undergoes a relaxation characterized by a {~}30^∘{} Cu-Cl surface bond rotation, a 0.15 {} contraction of the top-to-second layer distance, and a 0.4 {} horizontal displacement of Cl relative to Cu. The relaxation is consistent with the ``universal'' structure deduced from the analysis of cleavage surface of tetrahedrally coordinated III-V and II-VI compounds, thereby revealing that this featuare of the structure does not depend significntly on the ionicity of the compound.
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Kahn et al. (1992) studied this question.
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