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首页> 外文期刊>Physical review >van der Waals interaction between a microparticle and a single-walled carbon nanotube
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van der Waals interaction between a microparticle and a single-walled carbon nanotube

机译：微粒与单壁碳纳米管之间的范德华相互作用

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摘要

The Lifshitz-type formulas describing the free energy and the force of the van der Waals interaction between an atom (molecule) and a single-walled carbon nanotube are obtained. The single-walled nanotube is considered as a cylindrical sheet carrying a two-dimensional free-electron gas with appropriate boundary conditions on the electromagnetic field. The obtained formulas are used to calculate the van der Waals free energy and force between a hydrogen atom (molecule) and sipgle-walled carbon nanotubes of different radii. Comparison studies of the van der Waals interaction of hydrogen atoms with single-walled and multiwalled carbon nanotubes show that depending on atom-nanotube separation distance, the idealization of graphite dielectric permittivity is already applicable to nanotubes with only two or three walls.
机译：获得描述原子（分子）与单壁碳纳米管之间的自由能和范德华相互作用力的李夫希兹式公式。单壁纳米管被认为是承载二维自由电子气的圆柱片，在电磁场上具有适当的边界条件。所得公式用于计算氢原子（分子）与半径不同的壁状碳纳米管之间的范德华力和自由能。氢原子与单壁和多壁碳纳米管的范德华相互作用的比较研究表明，取决于原子-纳米管的分离距离，石墨介电常数的理想化已经适用于只有两三个壁的纳米管。

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