Analysis of tip stability in adhesion process in AFM using potential energy surface: Stability versus dissipation

Research output: Contribution to journalArticleScientificpeer-review

Researchers

Research units

  • Yamaguchi University

Abstract

We analyze the stability of the atomic configurations of tips in the adhesion process in noncontact atomic force microscopy (AFM) using a potential energy surface (PES). We calculate the PES for two types of atomic configurations of the tip as typical cases of reconstruction and irreversible change during the adhesion process. The stability of the tips after atomic contact with the surface is explained on the basis of the calculated PESs, which are affected by the strength of the atomic bond between the tip and the surface. It is shown from the computational model for the AFM that an unstable tip leads to a larger energy dissipation compared to that for a stable tip.

Details

Original languageEnglish
Pages (from-to)132-136
Number of pages5
Journale-Journal of Surface Science and Nanotechnology
Volume16
Publication statusPublished - 9 May 2018
MoE publication typeA1 Journal article-refereed

    Research areas

  • Adhesion, Atomic force microscopy, Computer simulation, Energy dissipation

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