水分子纳米柱的形成、操纵和弹性测量
Formation, Manipulation, and Elasticity Measurement of a Nanometric Column of Water Molecules
摘要：
在环境条件下操作的原子分辨率力显微镜可以产生纳米级的冷凝水分子柱。在其拉伸过程中观察到与尖端-衬底间隙中的薄水桥相关的力梯度的不寻常的逐步减小，在台阶高度（~0.5 N/m）和平台长度（~1 nm）中表现出规律性。这种“量化”的弹性是在尖端-水界面处的原子尺度粘滑的指示。一个水的弯月面（5-nm长，2.6-nm宽）的不稳定性引起的破裂也found. This工作打开了高分辨率的纳米水柱的结构和界面动力学的研究。
英文摘要：
Nanometer-sized columns of condensed water molecules are created by an atomic-resolution force microscope operated in ambient conditions. Unusual stepwise decrease of the force gradient associated with the thin water bridge in the tip-substrate gap is observed during its stretch, exhibiting regularity in step heights (~0.5 N/m) and plateau lengths (~1 nm). Such "quantized" elasticity is indicative of the atomic-scale stick-slip at the tip-water interface. A thermodynamic-instability-induced rupture of the water meniscus (5-nm long and 2.6-nm wide) is also found. This work opens a high-resolution study of the structure and the interface dynamics of a nanometric aqueous column.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
