Friction at Atomic-Scale Surface Steps: Experiment and Theory
نویسندگان
چکیده
منابع مشابه
Friction at atomic-scale surface steps: experiment and theory.
Experiments performed by friction force microscopy at atomic-scale surface steps on graphite, MoS2, and NaCl in ambient conditions are presented. Both step-down and step-up scans exhibit higher frictional forces at the edge, but distinguish in their load dependence: While the additional frictional force due to the step edge increases linearly with load if the tip has to jump a step up, it remai...
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Philip Egberts,1 Zhijiang Ye,2 Xin Z. Liu,1 Yalin Dong,3 Ashlie Martini,2,* and Robert W. Carpick1,† 1Department of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, 220 South 33rd Street, Philadelphia, Pennsylvania 19104, USA 2School of Engineering, University of California Merced, 5200 North Lake Road, Merced, California 95343, USA 3School of Mechanical Engineering, Pu...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2008
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.101.246105