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EFM phase shift signals mismatch in "scan" and "ramp" regimes

Hi all, I have a question about EFM measurements in "scan" and "ramp" modes. The strange thing is that EFM phase shift values in interleave (lift) mode on the same sample surface area are different. Below is the picture illustrating this mismatch. In the left side is the image of EFM phase difference distribution the surface of GaAs

Posted to SPM Digest (Forum) by virggis on Mon, Mar 16 2015
I-V shifts Dimension3100 with TUNA

Normal 0 19 false false false MicrosoftInternetExplorer4 Normal 0 19 false false false MicrosoftInternetExplorer4 Hi all, we have zero point shifts in our Dimension 3100/Nanoscope IVa system with Extended TUNA module. I attached graph illustrating the shifts. Reference measurements of commercial diode were made with Keithley 2601 source meter and I

Posted to SPM Digest (Forum) by virggis on Mon, Dec 2 2013
Re: Strange linear trenches...

I think it could be caused by contamination from the sample (or tip). It should also appear on smaller scan sizes (~50um).

Posted to SPM Digest (Forum) by virggis on Tue, Dec 18 2012

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