Strongly temperature dependent sliding friction for a superconducting interface

被引:16
作者
Sokoloff, JB [1 ]
Tomassone, MS
Widom, A
机构
[1] Northeastern Univ, Dept Phys, Boston, MA 02115 USA
[2] Northeastern Univ, Ctr Interdisciplinary Res Complex Syst, Boston, MA 02115 USA
关键词
D O I
10.1103/PhysRevLett.84.515
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A sudden drop in mechanical friction between an adsorbed nitrogen monolayer and a lead substrate occurs when the lead passes through the superconducting 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.
引用
收藏
页码:515 / 517
页数:3
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