| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Dissipation Energy in Tapping-Mode Atomic Force Microscopes Caused by Liquid Bridge |
| Zheng Wei1**, Zai-Ran Wang1, Yan Sun1, Xiang-Hong Xu2 |
1College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing 100029
2State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190
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| Cite this article: |
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Zheng Wei, Zai-Ran Wang, Yan Sun et al 2018 Chin. Phys. Lett. 35 016802 |
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Abstract The dissipation of energy during the process of contact and separation between a tip and a sample is very important for understanding the phase images in the tapping mode of atomic force microscopes (AFMs). In this study, a method is presented to measure the dissipated energy between a tip and a sample. The experimental results are found to be in good agreement with the theoretical model, which indicates that the method is reliable. Also, this study confirms that liquid bridges are mainly produced by extrusion modes in the tapping mode of AFMs.
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Received: 18 October 2017
Published: 17 December 2017
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| PACS: |
68.37.Ps
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(Atomic force microscopy (AFM))
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68.03.Cd
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(Surface tension and related phenomena)
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| Fund: Supported by the National Natural Science Foundation of China under Grant Nos 11572031 and 11642013, and the Opening Fund of State Key Laboratory of Nonlinear Mechanics. |
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