Step effects on diffusion near a substrate reconstructive phase transition : H on W „ 100 ...
نویسندگان
چکیده
Lei Cai, Chaozhi Zheng, K. L. Man, M. S. Altman, E. Granato, T. Ala-Nissila, S. C. Ying, and Xudong Xiao* Department of Physics, The Hong Kong University of Science and Technology, Hong Kong, SAR, China Instituto Nacional de Pesquisas Espaciais, Sao Jose dos Campos, Sao Paolo, Brazil Department of Physics, Brown University, Providence, Rhode Island 02912 USA Helsinki Institute of Physics and Laboratory of Physics, Helsinki University of Technology, P.O. Box 1100, FIN-02015 HUT, Espoo, Finland ~Received 13 December 2002; published 29 August 2003!
منابع مشابه
Surface diffusion anomaly near a substrate phase transition: H on W(100).
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 T(C). We interpret the strong reduction of D as a result of the diverging fri...
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تاریخ انتشار 2003