NC-AFM fast scan movie on NaCl (001), using a commercial high frequency cantilever (fres = 1 613 640 Hz). The screw dislocation composed of mono-atomic steps was imaged at:
Feedback: -50 Hz
Gap Voltage: -1.1 V
Vibration Amplitude: 15 nmpp
Scan speed: 35 000 nm/s (0.1 s/scan line)
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