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Effective bulk and surface interatomic potentials are used to construct a quantitative description of the c(2×{}2) reconstruction of the clean W(001) surface. Appropriate Landau-Ginzburg Hamiltonians for the reconstruction are described, and numerical values for their parameters are obtained at T=0 from our effective Hamiltonian. The full phonon spectrum of the reconstructed surface is then calculated. Prominent surface modes and resonances characteristic of this reconstruction are identified and discussed in detail.
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Fasolino et al. (1987) studied this question.
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