On-Demand Session: AFM-Based Characterization of the Properties of 2D Materials and Heterostructures

       _{PRESENTATION HIGHLIGHTS:}

• [00:00:00] Graphene Discovery Backgroung
• [00:01:20] Tapping Mode of Moiré Pattern of Epitaxial Graphene on hBN
• [00:02:28] Peakforce QNM on Graphene on hBN
• [00:04:36] Nanoelectrical mapping of Moiré lattices
• [00:06:06] Quantum Twisting Microscope
• [00:07:20] AFM tip for nanomanipulation, fabrication
• [00:08:24] Conclusions

       _{PRESENTATION HIGHLIGHTS:}

• [00:00:00] Twistronics: Enabling novel physics and opto-electronics
• [00:04:35] Experimental Setup for PFM
• [00:10:18] Torsional Force Microscopy (TFM) explained
• [00:14:52] Improving image contrast by increasing torsional drive amplitude
• [00:17:00] Improving image contrast by increasing vertical loading force
• [00:17:51] Imaging VdW moire superlattices and atomic lattices
• [00:19:53] Other TFM applications
• [00:21:39] Conclusion

       _{PRESENTATION HIGHLIGHTS:}

• [00:01:12] Different methods and quality
• [00:07:40] Substrate and reference samples
• [00:14:35] Monolayer CVD-grown h-BN
• [00:20:47] Multilayer CVD-grown h-BN
• [00:29:28] Conclusions

       _{PRESENTATION HIGHLIGHTS:}

• [00:00:00] Does a kneeling impact more a pattern period?
• [00:00:51] Is there a limit to the voltages you can use for PFM?
• [00:01:52] Is there any melting or tendency to reduce the conductivity in the next experiment by using higher voltages? What probe where you using for TFM? 
• [00:04:00] What size was the graphene lattice?
• [00:05:09] Is it possible to prepare resistive memory devices out of amorphous HBN?
• [00:06:48] In the case of PFM measurements, what is the maximum bias for silicon platinum tips without damaging the tip?
• [00:09:58] Where was the 7.5 millivolt offset coming from?