Nanofriction of Neon Films on Superconducting Lead

M. Pierno; L. Bruschi; G. Fois; G. Mistura; C. Boragno; F. Buatier de Mongeot; U. Valbusa

doi:10.1103/PhysRevLett.105.016102

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Nanofriction of Neon Films on Superconducting Lead

M. Pierno, L. Bruschi, G. Fois, G. Mistura, C. Boragno, F. Buatier de Mongeot, U. Valbusa

DOI 10.1103/PhysRevLett.105.016102 · Physical Review Letters

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Abstract

With a quartz crystal microbalance technique we have studied the nanofriction of neon monolayers deposited on a lead surface at a temperature around 7 K. Unlike heavier adsorbates, Ne is found to systematically slide at such low temperatures without any evidence of pinning. The crossing of the Pb superconducting-metal transition is not accompanied by any change in dissipation, suggesting that the electronic contribution to friction is negligible for this system.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Pb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	7.2	Pressure not reported	onset
Pb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	7	Pressure not reported	onset