تقرير
Lateral vibration effects in atomic-scale friction
| العنوان: | Lateral vibration effects in atomic-scale friction |
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| المؤلفون: | Roth, R., Fajardo, O. Y., Mazo, J. J., Meyer, E., Gnecco, E. |
| سنة النشر: | 2014 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics |
| الوصف: | The influence of lateral vibrations on the stick-slip motion of a nanotip elastically pulled on a flat crystal surface is studied by atomic force microscopy (AFM) measurements on a NaCl(001) surface in ultra-high vacuum. The slippage of the nanotip across the crystal lattice is anticipated at increasing driving amplitude, similarly to what is observed in presence of normal vibrations. This lowers the average friction force, as explained by the Prandtl-Tomlinson model with lateral vibrations superimposed at finite temperature. Nevertheless, the peak values of the lateral force, and the total energy losses, are expected to increase with the excitation amplitude, which may limit the practical relevance of this effect. Comment: To appear in Applied Physics Letters |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1063/1.4866427 |
| URL الوصول: | http://arxiv.org/abs/1402.3605 |
| رقم الأكسشن: | edsarx.1402.3605 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1063/1.4866427 |
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