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The study of the roughening transition of a stepped surface of Cu(113) has been performed with the use of synchrotron grazing-incidence x-ray scattering. Surface roughening was observed directly from x-ray scans of the step superlattice reflection between 300 and 750 K. The results are interpreted with a theory of Villain, Grempel, and Lapujoulade, and the values of the transition temperature, the step-step repulsive energy, and the kink energy are determined to be 620±{}10 K, 7.4±{}0.9 meV, and 181±{}6.5 meV, respectively.
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Liang et al. (1987) studied this question.
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