Effect of normal vibration on friction in the atomic force microscopy experiment

被引：35

作者：

Jeon, Sangmin ^{[1
]}

Thundat, Thomas

Braiman, Yehuda

机构：

[1] Pohang Univ Sci & Technol, Dept Chem Engn, Pohang 790784, South Korea

[2] Oak Ridge Natl Lab, Ctr Engn Sci Adv Res, Div Life Sci, Oak Ridge, TN 37831 USA

[3] Oak Ridge Natl Lab, Ctr Engn Sci Adv Res, Div Math & Comp Sci, Oak Ridge, TN 37831 USA

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 21期

关键词：

D O I：

10.1063/1.2203741

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We studied the effect of periodic normal (out-of-plane) surface vibrations on friction in an atomic force microscope experiment. Vibration frequency was varied in the range of 1-100 kHz, and vibration amplitude was varied in the range of a few nanometers. We observed a reduction of a few orders of magnitude in friction coefficient due to the periodic vibrations. Friction reduction is over a wide range of vibration frequencies and amplitudes. Very low values (of the order of 0.01) of friction coefficient were measured. Our numerical simulation based on a minimalist modeling qualitatively agrees with the experimental results. Based on numerical simulations, a mechanism of friction reduction and/or increase with normal vibrations is proposed. (c) 2006 American Institute of Physics.

引用

页数：3

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