Indentation Control in Peak Force QNM

meaton212 posted on Tue, May 2 2017 10:46 AM

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Hello,

I was wondering if there was any way to make an indentation depth-controlled QNM experiment. I understand this kind of defeats the purpose of "peak force" control, but one of the issues I'm having with looking at two phase materials is that the tip indents too deep into one phase (d > R), but if I lower the peak force, it becomes not enough to indent into the other phase. Is there a way to set it so you can have different peak forces on different areas on the sample?