Publication
Ultramicroscopy
Paper

Restoration of STM images distorted by time-dependent piezo driver aftereffects

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Abstract

STM images recorded with piezoelectric drivers show characteristics distortions at the boundaries where the tip motion is reversed. Such artifacts can be eliminated by correcting for aftereffect assuming a logarithmic time-dependence. The amplitudes of such terms and the time elapsed between scan direction reversal and scan recording can be estimated by visual inspection of the corrected scan image on a graphics display and by maximizing picture correlation functions. STM images of well ordered clean single-crystal gold and copper surfaces are satisfactorily restored with this procedure. © 1992.

Date

01 Jan 1992

Publication

Ultramicroscopy

Authors

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