Nonlocality Effect in Atomic Force Microscopy Measurement and Its Reduction by an Approaching Method
文献类型：期刊论文
| 作者 | Hu M(胡明) ; Wang HY(汪海英); Xia MF(夏蒙棼); Ke FJ(柯孚久); Bai YL(白以龙)
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| 刊名 | Journal of Engineering Materials and Technology-Transactions of the ASME
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| 出版日期 | 2005 |
| 卷号 | 127期号:4页码:444-450 |
| 通讯作者邮箱 | huming@lnm.imech.ac.cn |
| ISSN号 | 0094-4289 |
| 通讯作者 | Hu, M (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China. |
| 中文摘要 | In AFM measurements of surface morphology, the locality is a traditional assumption, i.e., the load recorded by AFM is simply the function of the distance between the tip of AFM and the point on a sample right opposite the tip [Giessibl, E J., 2003, "Advances in Atomic Force Microscopy, " Rev. Mod. Phys., 75, pp. 949-983]. This paper presents that nonlocality effect may play an important role in atomic force microscopic (AFM) measurement. The nonlocality of AFM measurement results from two different finite scales: the finite scale of the characteristic intermolecular interaction distance and the geometric size of AFM tip. With a coupled molecular-continuum method, we analyzed this nonlocality effect in detail. It is found that the nonlocality effect can be formulated by a few dimensionless parameters characterizing the ratio of the following scales: the characteristic intermolecular interaction distance between the AFM tip and the sample, the characteristic size of the tip and the characteristic nano-structure and/or the nanoscale roughness on the surface of a sample. The present work also suggests a data processing algorithm-the approaching method, which can reduce the nonlocality effect in AFM measurement of surface morphology effectively. |
| 学科主题 | 力学 |
| 类目[WOS] | Engineering, Mechanical ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Engineering ; Materials Science |
| 关键词[WOS] | TIP STRUCTURE ; SURFACE ; IMAGES |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000232765200012 |
| 公开日期 | 2007-06-15 ; 2007-12-05 ; 2009-06-23 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/15527]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Hu M,Wang HY,Xia MF,et al. Nonlocality Effect in Atomic Force Microscopy Measurement and Its Reduction by an Approaching Method[J]. Journal of Engineering Materials and Technology-Transactions of the ASME,2005,127(4):444-450. |
| APA | 胡明,汪海英,夏蒙棼,柯孚久,&白以龙.(2005).Nonlocality Effect in Atomic Force Microscopy Measurement and Its Reduction by an Approaching Method.Journal of Engineering Materials and Technology-Transactions of the ASME,127(4),444-450. |
| MLA | 胡明,et al."Nonlocality Effect in Atomic Force Microscopy Measurement and Its Reduction by an Approaching Method".Journal of Engineering Materials and Technology-Transactions of the ASME 127.4(2005):444-450. |
入库方式： OAI收割
来源：力学研究所
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