doi: 10.1103/PhysRevLett.88.046105.
Epub 2002 Jan 14.
Depinning of atomically thin Kr films on gold
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- PMID: 11801145
- DOI: 10.1103/PhysRevLett.88.046105
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Depinning of atomically thin Kr films on gold
Phys Rev Lett.
.
Abstract
We have employed the quartz-crystal microbalance technique to measure the sliding friction of krypton films physisorbed on gold. By slowly increasing the amplitude of the substrate oscillations, we have observed a sharp transition from a film locked to the substrate to a sliding one. This transition is characterized by hysteresis both in dissipation and inertial mass as the amplitude is decreased. Finally, the dependence of this transition on film coverage has been studied in some detail.
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