Institut Néel, CNRS and Université Joseph Fourier Grenoble, BP 166 38042, Grenoble Cedex 9, France.
Nanoscale Res Lett. 2010 May 19;5(8):1360-5. doi: 10.1007/s11671-010-9633-y.
Non-contact interaction between two parallel flat surfaces is a central paradigm in sciences. This situation is the starting point for a wealth of different models: the capacitor description in electrostatics, hydrodynamic flow, thermal exchange, the Casimir force, direct contact study, third body confinement such as liquids or films of soft condensed matter. The control of parallelism is so demanding that no versatile single force machine in this geometry has been proposed so far. Using a combination of nanopositioning based on inertial motors, of microcrystal shaping with a focused-ion beam (FIB) and of accurate in situ and real-time control of surface parallelism with X-ray diffraction, we propose here a "gedanken" surface-force machine that should enable one to measure interactions between movable surfaces separated by gaps in the micrometer and nanometer ranges.
两平行平面之间的非接触相互作用是科学中的一个核心范例。这种情况是许多不同模型的起点：静电学中的电容器描述、流体动力学流动、热交换、卡西米尔力、直接接触研究、第三体限制（如软凝聚态物质的液体或薄膜）。平行度的控制要求如此之高，以至于迄今为止尚未提出在这种几何形状下具有多功能的单一力机。我们使用基于惯性电机的纳米定位、聚焦离子束（FIB）的微晶体成型以及使用 X 射线衍射进行表面平行度的精确原位和实时控制的组合，在这里提出了一种“思想”表面力机，它应该能够测量由微米和纳米范围内的间隙隔开的可移动表面之间的相互作用。
