Theory of friction: Coulomb drag between two closely spaced solids

被引：51

作者：

Persson, BNJ

Zhang, ZY

机构：

[1] Forschungszentrum Julich, Inst Festkorperforsch, D-52425 Julich, Germany

[2] Oak Ridge Natl Lab, Div Solid State, Oak Ridge, TN 37831 USA

[3] Univ Tennessee, Dept Phys, Knoxville, TN 37996 USA

来源：

PHYSICAL REVIEW B | 1998年 / 57卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.57.7327

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We calculate the friction force between two metallic bodies with hat surfaces separated by a vacuum slab of thickness d, and moving with a relative velocity upsilon. The separation d is assumed to be so large that the only interaction between the bodies is via the Coulomb field. The friction force depends linearly on the velocity upsilon (for small upsilon) and decays rapidly with increasing d. In most practical cases, the Coulomb drag makes a negligible contribution to the friction force, but it may make an important contribution in some special cases.

引用

页码：7327 / 7334

页数：8

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