The Nanoscale World


  • Re: Point and Shoot contact mode force curves from tapping mode

    Hi Sean, You can switch to do contact mode force curves after imaging in PeakForce Tapping, using Point & Shoot feature. I do know that we have this feature in v8.15, but not sure about 8.10 (It was needed for PeakForce TUNA, so I know we have it...) I'll check about 8.10, and if not, we should be able to get you a SW update. As for automation
    Posted to SPM Digest (Forum) by Adam Mednick on Wed, Jul 13 2011
  • Re: ScanAsyst with other probes

    The NanoScope IIIa does not have this feature - ScanAsyst works with Peak Force Tapping mode on the NanoScope V controller... although many of the older systems can be upgraded. Peak Force Tapping makes a force curve measurement at each pixel as the primary feedback mechanism. It directly controls the interaction force between the tip and sample. As
    Posted to SPM Digest (Forum) by Adam Mednick on Thu, Mar 24 2011
  • Re: understanding F v D curves for scratches using nanoscope analysis software

    Hi Chris, You should most certainly be able to open and analyze force curves with NanoScope Analysis. From the screenshot, it appears that there is something strange with this data file... Typically, the blue curve is the approach, and the red curve is the retract. So the blue curve should show the point of initial contact, but the blue curve on the
    Posted to SPM Digest (Forum) by Adam Mednick on Thu, Jan 27 2011
  • Re: Q on parameter file - Nanoscope v. 6.13

    Hi Dalia, I have used 6.13 very little myself, but I believe that it is very similar to v7x in how you access these parameters. In the "browse" window (on the right hand side of the screen where all of the captured files are), right click on the file and select "properties". You should see a list of different parameter list. Most
    Posted to SPM Digest (Forum) by Adam Mednick on Tue, Jan 18 2011
  • Re: QNM Probe selection

    Hello Joseph, You are correct that you will need probes this stiff in order to measure very stiff samples, and you are correct in choosing TAP525 for this purpose. I don't see any reason why this shouldn't work in fluid. Could you elaborate more on why it does not work for you in fluid? In general, there are some parameters that can be adjusted
    Posted to SPM Digest (Forum) by Adam Mednick on Mon, Dec 20 2010
  • Re: Using high aspect ratio probes

    Hello Dan, You should be able to use peak force mode with TESP-HAR probes, although as you point out, they do have high spring constant (40N/m nominally). This would apply higher force to the tip - if you are not imaging high resolution features <10nm, it shouldn't be problem. The High aspect ratio should get you better profile of the trench
    Posted to SPM Digest (Forum) by Adam Mednick on Thu, Nov 11 2010
  • Re: Engaging in liquid with the di3100 afm

    Hello Anketene, With a very soft lever as you describe, at k=0.02N/m, it is possible that the cantilever is deflecting 2V or more before the lever actually reaches the surface. From your description of behavior, it certainly sounds like false engage is occuring, where the system reaches the setpoint but the lever is not on the surface. I would try using
    Posted to SPM Digest (Forum) by Adam Mednick on Fri, Nov 5 2010
  • Re: Using a scrypt to daisy chain programs on different scan sizes

    Hi Andres, Recipes is specifically designed to accomodate cases like this, where you wish to program the microscope to make multiple measurments on a same sample in a scripting type format. Recipes is essentially a GUI based script editor. Rather than having to know anything about scripting and python, you can use GUI elements that you drag & drop
    Posted to SPM Digest (Forum) by Adam Mednick on Wed, Jul 28 2010
  • Re: ScanAsyst with other probes

    I think that you may find that ScanAsyst Air probes may work just as well, and at significantly lower cost. The aspect ratio of ScanAsyst Air probes are fairly high for the last 70 or 80nm of the probe's height, certainly plenty for to get deep into the poly-Si grain bounderies... and while the spec for tip radius on ScanAsyst Air probes is <10nm
    Posted to SPM Digest (Forum) by Adam Mednick on Fri, Jun 18 2010
  • Re: ScanAsyst with other probes

    Hi Tony, While I have not yet tried using PeakForce Tapping or ScanAsyst with CNT probes, I don't think that there should be any problem... we have used PFT with a wide variety of probes, from the standard soft ScanAsyst probes up to very stiff indentation probes to interrogate QNM properties on very hard samples. For CNT tips, I would suspect that
    Posted to SPM Digest (Forum) by Adam Mednick on Fri, Jun 18 2010
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