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High pass filtered AFM images of topography resulting from annealing patterned vicinal surfaces at in ultrahigh vacuum for . Initial pattern dimensions are (a) pitch, (b) pitch (center) and (c) pitch. Initial pit depths are approximately . Here and in Fig. 2, the field of view is , and steps ascend toward the left (uphill direction).
High pass filtered AFM images of topography after annealing patterned vicinal surfaces at in ultrahigh vacuum at a series of progressively longer times. Initial pattern dimensions are diameter, pitch. Annealing times (a) , (b) , (c) .
Relaxation of the corrugation amplitudes measured in (solid circles) and out (open squares) of the plane of the nominal surface for patterns of initial dimensions: (a) center-center spacing, and (b) diameter, spacing. Open diamonds show the corrugation amplitude out of plane measured midway between rows of cylindrical pits.
Summary of time constants for decay of in-plane (solid circle) and out-of-plane (open squares) corrugation amplitudes as a function of initial pit diameter. Dashed line shows a best fit to a power law dependence for the in-plane relaxation time, with an exponent of .
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