时变针尖-样品力测量证实了双模态原子力显微镜中的稳态动力学
Time-varying tip-sample force measurements confirm steady-state dynamics in tapping-mode atomic force microscopy
摘要：
通过扭转谐波悬臂梁直接测量时变针尖-样品力有助于详细研究双模态原子力显微镜中的悬臂梁动力学。在这里，我们报告的实验证据表明，描述的稳态动力学的数学关系定量满足在广泛的实验条件下的独立测量的尖端样品的力量。这些结果证实了现有的理解的双模态原子力显微镜和建立信心的可靠性随时间变化的尖端样品力测量的扭转谐波杠杆。
英文摘要：
Direct time-varying tip-sample force measurements by torsional harmonic cantilevers facilitate detailed investigations of the cantilever dynamics in tapping-mode atomic force microscopy. Here we report experimental evidence that the mathematical relationships describing the steady state dynamics are quantitatively satisfied by the independent measurements of tip-sample forces over a broad range of experimental conditions. These results confirm the existing understanding of the tapping-mode atomic force microscopy and build confidence on the reliability of time-varying tip-sample force measurements by the torsional harmonic cantilevers.
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