A mechanical approach to the dissipation process in NC-AFM: experiments, model and simulation

被引:9
作者
Couturier, G. [1 ]
Aime, J. P. [1 ]
Salardenne, J. [1 ]
Boisgard, R. [1 ]
Gourdon, A. [2 ]
Gauthier, S. [2 ]
机构
[1] Univ Bordeaux 1, Ctr Phys Mol Opt & Hertzienne, F-33405 Talence 05, France
[2] CEMES CNRS, F-31055 Toulouse 4, France
来源
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2001年 / 72卷 / Suppl 1期
关键词
PACS: 61.16.-d; 68.35.Bs;
D O I
10.1007/s003390100634
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Experiments performed using NC-AFM on a pure graphite surface suggest that the mechanical deformation of the surface under test is able to explain the observed damping signal. A simple analytical model has been built to evaluate the damping signal in terms of the mechanical properties of the surface, the amplitude of the oscillation and the tip-surface distance. Besides these experiments and a model, a virtual NC-AFM microscope has been developed, based on the Matlab language. This virtual machine allows some assumptions of the analytical model to be validated or invalidated, since no approximations are made in solving the nonlinear differential equation which controls the tip-surface interaction and the NC-AFM electronic loop is included.
引用
收藏
页码:S47 / S50
页数:4
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