Atomic Force Microscopy in hard and soft matter physics

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SUMMARY

The discussion centers on the modes of operation of Atomic Force Microscopy (AFM) in hard and soft matter physics, specifically contact, tapping, and non-contact modes. It is established that non-contact and tapping modes are preferable for soft samples to prevent damage, while contact mode is suggested for hard samples, despite concerns about potential scratching. The user has provided links to relevant research papers that explore these modes further, indicating a need for clarity on the limitations and applications of each mode in different material contexts.

PREREQUISITES
  • Understanding of Atomic Force Microscopy (AFM) principles
  • Familiarity with contact, tapping, and non-contact modes of AFM
  • Knowledge of material properties in hard and soft matter physics
  • Ability to interpret scientific research papers related to microscopy techniques
NEXT STEPS
  • Research the advantages and limitations of AFM contact mode for hard materials
  • Explore the effects of AFM tapping mode on soft materials
  • Investigate the latest advancements in AFM technology and techniques
  • Review case studies on AFM applications in hard and soft matter physics
USEFUL FOR

This discussion is beneficial for physicists, materials scientists, and researchers in the field of microscopy, particularly those focusing on the applications of Atomic Force Microscopy in analyzing hard and soft materials.

JD_PM
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I am studying the modes of operation of the Atomic Force Microscopy (AFM). I know there are three: contact, tapping and non-contact.

Are they really used in both hard and soft matter physics? If so, how are the difficulties/limitations that they present overcome?
 
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Can you post some links to the reading you've been doing about this so far? Thanks. :smile:
 
OK after a little bit more reading I think that for soft samples the best is to use either non-contact or tapping mode, because prevents the sample from being damaged. However, what about hard samples?

In contact mode the probe will penetrate the liquid layer to image the underlying surface, whereas in non-contact mode an AFM will oscillate above the adsorbed fluid layer to image both the liquid and surface. So this suggests that for hard samples the best option is contact mode. Would not the contact mode still scratch the sample though?
 
JD_PM said:
OK after a little bit more reading I think that for soft samples the best is to use either non-contact or tapping mode, because prevents the sample from being damaged. However, what about hard samples?

In contact mode the probe will penetrate the liquid layer to image the underlying surface, whereas in non-contact mode an AFM will oscillate above the adsorbed fluid layer to image both the liquid and surface. So this suggests that for hard samples the best option is contact mode. Would not the contact mode still scratch the sample though?
Issue has been solved.
 
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