Instruction manual

List of Figures
16 MultiMode SPM Instruction Manual Rev. B
Figure 9.5c STM current image of layered crystal a-RuCl3.
Scan size = 4.48nm, Itun = 1.5pA, Vbias = 42mV. . . . 161
Figure 9.5d STM height image of alkanethiol layer on Au (111) substrate.
Scan size = 178.5nm, Itun = 2pA, Vbias = 1V. (Courtesy of Dr.
I. Tuzov, NCSU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Figure 9.5e Molecular-scale STM current image of alkanethiol
layer on Au (111) substrate. Scan size = 10.0nm, Itun = 13pA,
Vbias = 1V. (Courtesy of Dr. I. Tuzov, NCSU) . . . . . . 162
Chapter 10 Lateral Force Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Figure 10.2a Scan Angle Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Figure 10.2b Example of Frictional Forces on Tip During Scan (Front View)170
Figure 10.2c Friction Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Figure 10.2d TMR Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Figure 10.2e Height Artifacts in LFM Data . . . . . . . . . . . . . . . . . . . . . . . . 173
Chapter 11 Force Imaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Figure 11.1a Comparative Index of Pulling Forces . . . . . . . . . . . . . . . . . . 177
Figure 11.1b Pulling Forces Graph. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Figure 11.2a Z-axis Voltage During Force Plot Scanning. . . . . . . . . . . . . . 178
Figure 11.2b Relationship of Z Scan Start and Scan Size. . . . . . . . . . . . . . 179
Figure 11.2c Tip-Sample Interaction During a Force Plot . . . . . . . . . . . . . 180
Figure 11.2d Anatomy of a Force Curve. . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Figure 11.3a Advanced Force Calibration Control Window (Contact Mode AFM)
183
Figure 11.3b Absolute and Relative Triggers . . . . . . . . . . . . . . . . . . . . . . . 188
Figure 11.4a Typical Force Calibration Curve . . . . . . . . . . . . . . . . . . . . . . 191
Figure 11.4b False Engagement (G Scanner) . . . . . . . . . . . . . . . . . . . . . . . 193
Figure 11.4c Set the Sensitivity Parameter . . . . . . . . . . . . . . . . . . . . . . . . . 194
Figure 11.4d Computing Contact Force . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Figure 11.4e Force Curve Examples. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Figure 11.5a Piezo Extension Versus RMS Amplitude and Deflection . . . 200
Figure 11.5b TappingMode Force Plot Parameter Settings (Force Calibrate)202
Figure 11.5c Amplitude Force Plot with High Contact Force. . . . . . . . . . . 203
Figure 11.6a Contrast Generated in Force Modulation Mode . . . . . . . . . . 204
Figure 11.6b MultiMode Force Modulation Tipholder. . . . . . . . . . . . . . . . 204
Figure 11.6c Auto Tune Controls Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Figure 11.6d Typical Frequency Sweep Plot. . . . . . . . . . . . . . . . . . . . . . . . 208
Figure 11.6e Correctly Tuned Force Modulation Frequency . . . . . . . . . . . 209
Figure 11.6f Friction on Force Modulation Images . . . . . . . . . . . . . . . . . . 212
Chapter 12 Interleave Scanning and LiftMode. . . . . . . . . . . . . . . . . . . . . . . . . 217
Figure 12.2a X-Y Scan Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Figure 12.3a LiftMode Profiles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220