Estimation of Friction of a Single Chemisorbed Molecule on a Surface Using Incident Atoms

作     者：T. Takaoka T. Komeda 

作者机构：Institute of Multidisciplinary Research for Advanced Materials Tohoku University Katahira 2-1-1 Aoba-ku Sendai 980-8577 Japan Core Research for Evolutional Science and Technology (CREST) Japan Science and Technology Agency (JST) 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan 

出 版 物：《Physical Review Letters》 (Phys Rev Lett)

年 卷 期：2008年第100卷第4期

页      面：046104-046104页

核心收录：

学科分类：07[理学] 0702[理学-物理学] 

主　　题：Surfaces 

摘      要：Friction of a single molecule chemisorbed on a surface is a very fundamental property related to the dynamics of the diffusion of the molecule. We used a newly developed method, in which energy-controlled rare gas atoms collide with CO molecules on a stepped surface to displace CO molecules from initial terrace sites to final step sites. The friction coefficient of CO molecules on the surface was determined directly by comparing the experimentally measured increase in the number of CO molecules at step sites with classical molecular dynamics simulation results.