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Please use this identifier to cite or link to this item: http://hdl.handle.net/10928/296

Title: グラフェン/C_<60>/グラフェン界面の特異な超潤滑特性
Other Titles: Unique Superlubricity Appeared at Graphene/C_<60>/Graphene Interface
Authors: 佐々木, 成朗
浅輪, 紘子
板村, 賢明
SASAKI, Naruo
ASAWA, Hiroko
ITAMURA, Noriaki
Keywords: Tribology
friction
superlubricity
C_<60>
graphene
molecular mechanics simulation
Issue Date: 1-Dec-2012
Publisher: 成蹊大学理工学部
Abstract: Unique near-zero friction regime of the C_<60> molecular bearings, graphene/C_<60>/graphene interface, is numerically found for the lateral scan along the [1120] direction under the relatively low loading condition. The sinusoidal motion of the C_<60> molecule along the carbon bond is continuous and reversible during the forward and backward scans. As a result, the hysteresis loop of the lateral force curve nearly disappears, which leads to a mean frictional force of nearly zero, <F_L> ≃ 0. The mechanism of this conservative motion is clarified by the direct calculation of the local minimum position located on the total potential energy surface V_<total>. The energy barrier between the neighboring minimum positions always exists, which prevents the C_<60> molecule from taking stick-slip motion.
URI: http://hdl.handle.net/10928/296
Appears in Collections:第49巻第2号

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