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Title: 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 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.
Authors:
;  [1] ;  [2]
  1. Division of Physics and Astronomy, VU University Amsterdam, Amsterdam (Netherlands)
  2. Huygens-Kamerlingh Onnes Laboratorium, Leiden University, Leiden (Netherlands)
Publication Date:
OSTI Identifier:
22254908
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 4; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; AMPLITUDES; DATA PROCESSING; EXCITATION; MICROSCOPY; PROBES; SIGNALS; SWITCHES