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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, and U. Valbusa
Phys. Rev. Lett. 105, 016102 – Published 2 July 2010
Physics logo See Synopsis: Electrons or phonons–which are the bigger drag?

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.

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  • Received 16 April 2010

DOI:https://doi.org/10.1103/PhysRevLett.105.016102

©2010 American Physical Society

Synopsis

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Electrons or phonons–which are the bigger drag?

Published 9 July 2010

The sources of friction between two surfaces can be difficult to pin down.

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Authors & Affiliations

M. Pierno, L. Bruschi, G. Fois, and G. Mistura*

  • CNISM and Dipartimento di Fisica G. Galilei, Università di Padova, via Marzolo 8, 35131 Padova, Italy

C. Boragno, F. Buatier de Mongeot, and U. Valbusa

  • Dipartimento di Fisica, Università di Genova, via Dodecaneso 33, 16146 Genova, Italy

  • *mistura@padova.infm.it

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Issue

Vol. 105, Iss. 1 — 2 July 2010

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