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The Article is free to download for 30 days. The use of the PeakForce quantitative nanomechanical mapping AFM-based method for high-resolution Young's modulus measurement of polymers T J Young 1 , M A Monclus 1 , T L Burnett 1 , W R Broughton 1 , S L Ogin 2 and P A Smith 2 http://iopscience.iop.org/0957-0233/22/12/125703/ Thanks Tim
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Hello there, I have an Icon microscope and I am doing some piezoelectric force microscopy on some very weakly piezoelectric samples. I find that I get much better results from the Low speed (LS) lockin compared to the high speed for a given frequency (15 kHz). This I believe is aside from the gain as I really see nothing with the high speed lockin.
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Hello Stefan, it would be great if we could order a modified tip holder from you. How can this be arranged? Any idea how soon I could get this part? Do you have my e-mail address? Thanks Tim
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Hello Stefan, the problem is related to my other post about using the heater and simultaneously doing electrical measurements. I think I am right in saying that the tip holder with tip heater cannot also deliver electical signals to the tip? That certainly seems to be the case with my cantilever holder. So my issue is that I am trying to discover the
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Hello Again, I would be very grateful of any tips. Ideally I would like to use the standard tip holder so I can route an AC bias to the tip. The problem is that if I go above around 100C, I get something ( I think water) condensing on to the cantilever and it looses it's reflectivity to the laser. I was thinking of making a conductive sample holder
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Hello again, I have a follow on question regarding signal routing. In surface potential measurements when I open the Generic Lockin I cannot see the drive routing destination. I would like to be able to change between applying the AC signal through the sample and tip as well as extracting the signal through the SAM V or front panel if possible. How
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Hi Steve, unfortunately this is no good for my experiments as just above 100C, at about 120 or 130C I get condensation onto the tip. I need to go to up to 150C ideally. Do you have any ideas on how I can get around this. Maybe modify the tip holder? Thanks Tim
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Hi Steve, thanks very much for your replies. And thanks for the typo correction I was a little confused about PFT! I will try some things out and get back to you. Tim
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Hello again, I have acouple of questions about using the SAM V. 1) I assume I can select in the software for example 'drive routing: sample' and then I can extract this from the 'sample bias output' on the SAM V. In turn I can put this into the 'tip bias input' on the SAM V and this voltage will be applied to the the tip? 2)
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Hello there, I am currently trying to do some piezoresponse force microscopy on the Icon. The complication is that I am using the Heater Cooler stage and the voltage used for the PFM seems to be interfering with the thermocouple. Does anyone have any experience of this problem or how to overcome it? Many thanks in advance Tim