Observation of proportionality between friction and contact area at the nanometer scale

  title={Observation of proportionality between friction and contact area at the nanometer scale},
  author={Marian Enachescu and R. J. A. van den Oetelaar and Robert W. Carpick and D Frank Ogletree and Miquel B Salmeron},
The nanotribological properties of a hydrogen-terminated diamond(111)/tungsten-carbide interface have been studied using ultra-high vacuum atomic force microscopy. Both friction and local contact conductance were measured as a function of applied load. The contact conductance experiments provide a direct and independent way of determining the contact area between the conductive tungsten-carbide AFM tip and the doped diamond sample. We demonstrate that the friction force is directly proportional… CONTINUE READING
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