Abstract
We investigate the orientation dependence, the initial translational energy dependence and the substrate temperature dependence of the dissociation probability of hydrogen molecules scattered from metal surfaces as a function of the final translational energy of the center-of-mass motion, considering electron correlation effects in the metal substrate, with the aid of the Hubbard model. We take into account the Coulomb interaction within the single-site approximation in calculating the probability distribution. On the basis of the calculation results, we show that as the Coulomb interaction in the metal substrate is increased, the molecular orientation dependence in the high energy tail of the probability distribution changes, but the initial translational energy and the substrate temperature dependence of the probability distribution remain unchanged qualitatively.
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