Strongly temperature dependent sliding friction for a superconducting interface

Authors
Sokoloff, JB Tomassone, MS Widom, A
Citation
Jb. Sokoloff et al., Strongly temperature dependent sliding friction for a superconducting interface, PHYS REV L, 84(3), 2000, pp. 515-517
Citations number
29
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
84
Issue
3
Year of publication
2000
Pages
515 - 517
Database
ISI
SICI code
0031-9007(20000117)84:3<515:STDSFF>2.0.ZU;2-F
Abstract
A sudden drop in mechanical friction between an adsorbed nitrogen monolayer and a lead substrate occurs when the lead passes through the superconducti ng transition temperature. We attribute this effect to a sudden drop at the superconducting transition temperature of the substrate Ohmic heating. The Ohmic heating is due to the electronic screening current that results from the sliding adsorbed film. PACS numbers: 68.35. - p. 74.90.+ n.