Abstract
A simple criterion is introduced which allows one to estimate the tendency of metal surfaces to reconstruct. At clean surfaces changes in surface tension γ 0 are estimated from a simple formula based on a tight-binding hamiltonian, yielding surface multilayer relaxations as by-product. The effect of adsorbates to induce or to suppress reconstruction is described by adsorbate-dependent modifications of γ 0. The calculation successfully describes reconstruction at clean and adsorbate-covered (110) and (100) surfaces of Ir, Pt and Au.
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