Surface Diffusion Anomaly Near Substrate Phase Transition: H on W(100)
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Physical Review Letters, Volume 88, issue 22, pp. 1-4
Abstract
Using a linear optical diffraction method, we have experimentally studied the long predicted diffusion anomalous behavior for H/W(100) near the reconstructive phase transition of the W(100) substrate. This anomaly manifests itself in the form of a strong dip in the diffusion coefficient D at the transition temperature TC. We interpret the strong reduction of D as a result of the diverging friction damping near the transition. The finite dip in D instead of a vanishing D at TC also demonstrates the importance of the non-Markovian (memory) deviation from the simple instantaneous damping picture.Description
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Cai, L, Altman, M S, Granato, E, Ala-Nissila, T, Ying, S C & Xiao, X 2002, 'Surface Diffusion Anomaly Near Substrate Phase Transition: H on W(100)', Physical Review Letters, vol. 88, no. 22, 226105, pp. 1-4. https://doi.org/10.1103/PhysRevLett.88.226105