General theory of amplitude-modulation atomic force microscopy

被引:125
作者
Lee, Manhee [1 ]
Jhe, Wonho [1 ]
机构
[1] Seoul Natl Univ, Sch Phys & Astron, Seoul 151747, South Korea
关键词
D O I
10.1103/PhysRevLett.97.036104
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We present a general analytical theory that enables one to determine accurately the unknown tip-sample interactions from the experimental measurement of the amplitude and phase of the oscillating tip in amplitude-modulation atomic force microscopy (AM-AFM). We apply the method to the known Lennard-Jones-type forces and find excellent agreement with the reconstructed results. AM-AFM, widely used in air and liquid, is now not only an imaging tool but also a quantitative force measurement tool.
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页数:4
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