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Dear Dinushi, Let me first explain the parameters so to establish a base as what settings we should be using for STS i(V). Feedback Type F EEDBACK TYPE , selected from a pull-down list, is used to control the tip-to-sample separation and helps avoid tip crashes that can be caused by drift. For each feedback...
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Dear Ki-Rak, Can you send me the manual for the Lock-in Amplifier you are using, I'd like to know what exactly are ADC1, ADC2, A, OSC Out. Here is my guess: ADC1 is to read in the modulated data, in this case, tunneling current. OSC Out is the AC drive signal, in this case, the dV. "A"...