The puzzling collapse of electronic sliding friction on a super-conductor surface

被引:22
作者
Persson, BNJ
Tosatti, E
机构
[1] Forschungszentrum Julich, Inst Festkorperforsch, D-52425 Julich, Germany
[2] Ist Nazl Fis Mat, Trieste, Italy
[3] Abdus Salam Int Ctr Theoret Phys, I-34014 Trieste, Italy
[4] SISSA, I-34014 Trieste, Italy
关键词
atomistic dynamics; atom-solid interactions; conductivity; metallic films; metal-insulator interfaces; models of nonequilibrium phenomena; superconductivity; surface electrical transport (surface conductivity; surface recombination; etc.);
D O I
10.1016/S0039-6028(98)00413-0
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In a recent paper [A. Dayo, W. Alnasrallah, J. Krim, Phys. Rev. Lett. 80 (1998) 1690], Krim and coworkers have observed that the friction force, acting on a thin physisorbed layer of N-2 sliding on a lead film, abruptly decreases by a factor of similar to 2 when the lead film is cooled below its superconductivity transition temperature. We discuss the possible mechanisms for the abruptness of the sliding friction drop, and also discuss the relevance of these results to the problem of electronic friction. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:L855 / L857
页数:3
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