Quantitative analysis of dynamic-force-spectroscopy data on graphite(0001) in the contact and noncontact regimes

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Autor/in:
Erscheinungsjahr:
2000
Medientyp:
Text
Schlagworte:
  • Atomic force microscopy
  • Tips
  • Noncontact atomic
  • Atomic Force Microscopy
  • Self Assembled Monolayers
  • Molecules
  • Atomic force microscopy
  • Tips
  • Noncontact atomic
  • Atomic Force Microscopy
  • Self Assembled Monolayers
  • Molecules
Beschreibung:
  • We present a comparative experimental and theoretical study of the frequency shift in ultrahigh vacuum dynamic force microscopy at 80 K on graphite(0001) measured as a function of the tip-sample distance for different resonance amplitudes A in the repulsive and attractive regime of the tip-sample forces. The resulting frequency shift versus distance curves scale with (Formula presented) over the full range. We determined the tip-sample force from the frequency shift versus distance curves and found good agreement with specific force laws for long-range (van der Waals), short-range (Lennard-Jones), and contact (Hertz) forces. © 2000 The American Physical Society.
Lizenz:
  • info:eu-repo/semantics/closedAccess
Quellsystem:
Forschungsinformationssystem der UHH
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oai:www.edit.fis.uni-hamburg.de:publications/86ba89ce-6037-4461-900d-e08f7a77ec36