Numerical calculation of the Casimir forces between a gold sphere and a nanocomposite sheet
Numerical calculation of the Casimir forces between a gold sphere and a nanocomposite sheet
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DOI：
10.1088/1742-6596/258/1/012002
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发表时间：
2010-11
期刊：
影响因子：
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通讯作者：
N. Inui;K. Miura;K. Akamatsu;M. Ishikawa
中科院分区：
文献类型：
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作者：
N. Inui;K. Miura;K. Akamatsu;M. Ishikawa
卡西米尔排斥力有望成为一种能够使小物体（例如微机电系统（MEMS）中使用的机器部件）悬浮的力，并且通过这种悬浮可以实现MEMS中的超润滑性。我们研究了金球和含有许多镍纳米颗粒的纳米复合材料片之间的卡西米尔力。我们特别关注卡西米尔力对金球与纳米复合材料片表面之间分离的依赖性。随着分离的增加，卡西米尔力从吸引力变为排斥力。然而，排斥力的强度太小，无法使 MEMS 部件悬浮。
The repulsive Casimir force is expected as a force which enables to levitate small objects such as machine parts used in Micro Electro Mechanical Systems (MEMS), and superlubricity in MEMS may be realized by this levitation. We study the Casimir force between a gold sphere and a nanocomposite sheet containing many nickel nanoparticles. In particular, we focus on the dependence of the Casimir force on the separation between the gold sphere and the surface of the nanocomposite sheet. The Casimir force changes from the attractive force to the repulsive force as the separation increases. The strength of the repulsive force is, however, too small to levitate MEMS parts.