Valchev Galin, Djondjorov Peter, Vassilev Vassil, Dantchev Daniel
Institute of Mechanics-Bulgarian Academy of Sciences, Academic Georgy Bonchev St. Building 4, 1113 Sofia, Bulgaria.
Max-Planck-Institut für Intelligente Systeme, Heisenbergstrasse 3, D-70569 Stuttgart, Germany.
J Phys Condens Matter. 2020 Jul 1;32(40). doi: 10.1088/1361-648X/ab95d0.
We study the behaviour of the non-retarded van der Waals force between a planar substrate and a single-walled carbon nanotube, assuming that the system is immersed in a liquid medium which exerts hydrostatic pressure on the tube's surface, thereby altering its cross section profile. The shape of the latter is described as a continual structure characterized by its symmetry index. Two principle mutual positions of the tube with respect to the substrate are studied: when one keeps constant the minimal separation between the surfaces of the interacting objects; when the distance from the tube's axis to the substrates bounding surface is fixed. Within these conditions, using the technique of the surface integration approach, we derive in integral form the expressions which give the dependance of the commented force on the applied pressure.
我们研究平面基底与单壁碳纳米管之间非延迟范德华力的行为，假设该系统浸没在对碳纳米管表面施加静水压力的液体介质中，从而改变其横截面轮廓。后者的形状被描述为具有对称指数的连续结构。研究了碳纳米管相对于基底的两种主要相互位置：一种是保持相互作用物体表面之间的最小间距不变；另一种是碳纳米管轴到基底边界表面的距离固定。在这些条件下，我们使用表面积分方法，以积分形式推导出了所讨论的力与外加压力之间依赖关系的表达式。
