Dynamics of tapping mode atomic force microscopy in liquids: Theory and experiments
Dynamics of tapping mode atomic force microscopy in liquids: Theory and experiments
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DOI：
10.1063/1.2760175
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发表时间：
2007-08-06
影响因子：
4
通讯作者：
Raman, Arvind
中科院分区：
文献类型：
--
作者：
Basak, Sudipta;Raman, Arvind
提出了一种数学模型来预测原子力显微镜悬臂梁在液体环境中的振动动力学。用低刚度探头在液体中对硬样品和软样品进行的理论模拟和实验表明，与在空气中不同，探头的第二弯曲模式在针尖-样品接触时间附近瞬间被激发。该模型还能很好地预测不同设定值时的尖端幅值和相位。(C)2007年美国物理研究所。
A mathematical model is presented to predict the oscillating dynamics of atomic force microscope cantilevers with nanoscale tips tapping on elastic samples in liquid environments. Theoretical simulations and experiments performed in liquids using low stiffness probes on hard and soft samples reveal that, unlike in air, the second flexural mode of the probe is momentarily excited near times of tip-sample contact. The model also predicts closely the tip amplitude and phase of the tip at different set points. (c) 2007 American Institute of Physics.