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I am scanning Moly surfaces (sputter deposited, 1 micron thick). After each scan (1 x 1 micron), I can see the tip degrading before my eyes. I tried 'let set point' technic etc, but to no avail. I am using the TESP tip. I have a feeling I need a harder tip. Does Bruker offer nice tips ?? At the same time, I cannot have a blunt tip (sharpness should be comparable to TESP).
Regards,
By the probe in question, I suspect you are using TappingMode.
I would perhaps approach your problem from a different direction and recommend you scan with Peak Force Tapping. We have found the PFT can image with considerably less tip damage and wear. This is a discussed a bit in this post:
http://nanoscaleworld.bruker-axs.com/nanoscaleworld/forums/p/397/623.aspx
(But the graphic seems to have been lost in the transition to the Bruker site. I am reposting here).
Steve
PS: We offer really nice tips. Please give Bruker Probes a call.
http://www.brukerafmprobes.com/index.aspx
You referred me to an answer that uses "Scanasyst", which does not exist on nanoscope IIIa. Do you have a solution for reducing tip wear for nanoscope IIIa users ??
My suggestion would be to try two things with your NSIIIa:
1. Using the TESP try reducing the initial drive amplitude as much as possible.
2. Reduce the scan rate by a factor of 2 from whatever you are using right now.
Best, Stefan