e-Journal of Surface Science and Nanotechnology
Online ISSN : 1348-0391
ISSN-L : 1348-0391
Conference -ISSS-7-
Dynamic Friction of Nanoscale Sliding on a C60 Deposited Film
Yuka IkadaShohei TanaharaTomohiro OyamadaDaisuke InoueShingo MachidaJunko TaniguchiMasaru SuzukiMakoto IshikawaKouji Miura
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2015 Volume 13 Pages 135-138

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Abstract

We measured the frictional behavior acting on C60 films at a small normal load as a function of oscillation amplitude using a MHz-range quartz crystal resonator and an optical AFM cantilever. The frictional behavior for C60 films varies by the amplitude: For the amplitudes smaller than the C-C bond length of the C60 molecule, the dynamic frictional force is directly proportional to the amplitude, while it becomes almost constant for larger amplitudes. Although the observation is in qualitatively the same manner as HOPG, the dynamic frictional force for small amplitudes is significantly larger than that of HOPG. This difference suggests that C60 molecules easily tilt and/or rotate when the tip slides in C60 films, and the dynamic friction arises from the tilting and/or rotating motion. [DOI: 10.1380/ejssnt.2015.135]

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この記事はクリエイティブ・コモンズ [表示 4.0 国際]ライセンスの下に提供されています。
https://creativecommons.org/licenses/by/4.0/deed.ja
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