Note: switching crosstalk on and off in Kelvin Probe Force Microscopy

In Kelvin Probe Force Microscopy (KPFM) electronic crosstalk can occur between the excitation signal and probe deflection signal. Here, we demonstrate how a small modification to our commercial instrument enables us to literally switch the crosstalk on and off. We study in detail the effect of cross...

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Bibliographic Details
Published in:Review of scientific instruments 2014-04, Vol.85 (4), p.046111-046111
Main Authors: Polak, Leo, de Man, Sven, Wijngaarden, Rinke J
Format: Article
Language:English
Subjects:
AMPLITUDES
Crosstalk
DATA PROCESSING
EXCITATION
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
MICROSCOPY
PROBES
Scientific apparatus & instruments
SIGNALS
SWITCHES
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Summary:In Kelvin Probe Force Microscopy (KPFM) electronic crosstalk can occur between the excitation signal and probe deflection signal. Here, we demonstrate how a small modification to our commercial instrument enables us to literally switch the crosstalk on and off. We study in detail the effect of crosstalk on open-loop KPFM and compare with closed-loop KPFM. We measure the pure crosstalk signal and verify that we can correct for it in the data-processing required for open-loop KPFM. We also demonstrate that open-loop KPFM results are independent of the frequency and amplitude of the excitation signal, provided that the influence of crosstalk has been eliminated.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.4873331