Viscoelastic depinning of driven systems: Mean-field plastic scallops

被引：45
|
作者：
Marchetti, MC [1 ]
Middleton, AA [1 ]
Prellberg, T [1 ]
机构：
[1] Syracuse Univ, Dept Phys, Syracuse, NY 13244 USA
来源：
PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 05期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1103/PhysRevLett.85.1104
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have investigated the mean-field dynamics of an overdamped viscoelastic medium driven through quenched disorder. The model allows for the coexistence of pinned and sliding regions and can exhibit continuous elastic depinning or first-order hysteretic depinning. Numerical simulations indicate mean-field instabilities that correspond to macroscopic stick-slip events and lead to premature switching. The model describes the elastic and plastic dynamics of driven vortex arrays in superconductors and other extended disordered systems.
引用
收藏
页码：1104 / 1107
页数：4
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