Veeco Dimension 3100, Руководство пользователя

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Lateral Force Mode
Advanced LFM Operation
Rev. D Dimension 3100 Manual 199
Table 12.3a Key for LFM Example Above
12.3.4 Understanding the Color Scale
LFM data is typically monitored in the trace direction with the scan angle set to 90 degrees. The
data then follows a convention where lighter colors mean higher friction. Darker colors mean less
friction. The sign of the color is inverted if Retrace is monitored (see
Figure 12.3c ).
Figure 12.3c Friction Data
Number
Trace or
Retrace?
Tip
Movement
Level of
Friction
Photo Diode Voltage
1 trace slightly right slight slightly positive
2 “ severely right higher increases positive
3 “ straightens slight returns to slightly positive
4 “ severely right higher increases positive
5 “ straightens slight returns to slightly positive
6 retrace slightly left slight slightly negative
7 “ severely left higher increases negative
8 “ straightens slight returns to slightly negative
9 “ severely left higher increases negative
10 “ straightens slight returns to slightly negative
Trace
Retrace
High Friction
High Friction
Low Friction