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arXiv 1302.1829cond-mat.mes-hall
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多项式力近似与多频原子力显微镜

Polynomial force approximations and multifrequency atomic force microscopy

Daniel Platz, Daniel Forchheimer, Erik A. Tholen, David B. Haviland

摘要:

我们提出了多项式力重建实验互调原子力显微镜(ImAFM)的数据。我们研究了在缓慢的表面方法的尖端表面力,并与振幅依赖力谱的结果进行比较。基于多项式力重构,我们生成高分辨率的聚合物共混物样品的表面性质图。多项式方法被描述为一个特殊的例子,一个更一般的approximataive力重建,其目的是确定模型参数,最好的近似测得的力谱。这种近似的方法是不限于光谱数据,我们演示了如何可以适应力正交图片。

英文摘要:

We present polynomial force reconstruction from experimental intermodulation atomic force microscopy (ImAFM) data. We study the tip-surface force during a slow surface approach and compare the results with amplitude-dependence force spectroscopy. Based on polynomial force reconstruction we generate high-resolution surface property maps of polymer blend samples. The polynomial method is described as a special example of a more general approximataive force reconstruction, where the aim is to determine model parameters which best approximate the measured force spectrum. This approximative approach is not limited to spectral data and we demonstrate how is can adapted to a force quadrature picture.

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