Dynamical frictional force of nanoscale sliding
Dynamical frictional force of nanoscale sliding
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纳米级滑动的动摩擦力
DOI：
10.1103/physrevb.86.115411
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发表时间：
2012
影响因子：
3.7
通讯作者：
J. Taniguchi、M. Suzuki M
中科院分区：
文献类型：
--
作者：
D. Inoue;S. Machida;J. Taniguchi、M. Suzuki M
我们用探针-针尖-石英晶体-谐振器技术测量了作用在高取向热解石墨和C基片上的动态摩擦力随滑动距离的变化。结果表明，当振幅近似为每个衬底的晶格常数时，动态摩擦力发生剧烈变化：对于小振幅情况，动态摩擦力与振幅成正比，而对于大振幅情况，动态摩擦力与振幅无关。所观察到的行为定性地理解一个简单的一维汤姆林森模型。
We measured the dynamical frictional force acting on highly oriented pyrolytic graphite and Csubstrates by a sliding SiNtip as a function of sliding distance using the probe-tip–quartz-crystal-resonator technique. It was found that the dynamical frictional force undergoes a drastic change when the oscillation amplitude is approximately the lattice constant of each substrate: For a small case, it is directly proportional to the amplitude, while for a large case, it does not depend on the amplitude. The observed behavior is qualitatively understood by a simple one-dimensional Tomlinson model.