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Low energy electron microscopy investigations of kinetics and energetics on clean close-packed metal surfaces

M Ondrejcek, M Rajappan, W Swiech and C P Flynn

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Experiments are described in which low energy electron microscopy is employed to investigate the kinetics and energetics of clean close-packed metal surfaces, using step fluctuation spectroscopy. The data contain systematic trends of surface mass diffusion and step energetics that are identified and discussed. Further experiments and equipment development have been undertaken to explore the influence of accelerated mixing on surface evolution caused by ion beams, through the resulting kinetic and energetic perturbations of surface processes.


PACS

68.35.B- Structure of clean surfaces (and surface reconstruction)

68.35.Fx Diffusion; interface formation

68.47.De Metallic surfaces

68.37.Nq Low energy electron microscopy (LEEM)

64.75.-g Phase equilibria

Subjects

Soft matter, liquids and polymers

Surfaces, interfaces and thin films

Dates

Issue 16 (27 April 2005)

Received 9 December 2004, in final form 9 December 2004

Published 8 April 2005



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