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Iowa State University

2001

Chemistry Publications

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Full-Text Articles in Physics

Evolution Of Two-Dimensional Wormlike Nanoclusters On Metal Surfaces, Woei Wu Pai, John F. Wendelken, C. R. Stoldt, Patricia A. Thiel, James W. Evans, Da-Jiang Liu Apr 2001

Evolution Of Two-Dimensional Wormlike Nanoclusters On Metal Surfaces, Woei Wu Pai, John F. Wendelken, C. R. Stoldt, Patricia A. Thiel, James W. Evans, Da-Jiang Liu

Chemistry Publications

A pinch-off phenomenon is discovered in the evolution of 2D wormlike nanoclusters formed in homoepitaxial adlayers. This feature is shown to distinguish mass transport via periphery diffusion from other mechanisms. Continuum modeling of such evolution accurately describes experimental observations, particularly if one incorporates the anisotropy in step-edge line tension.