SELF-ORGANIZED CRITICAL-BEHAVIOR IN PINNED FLUX LATTICES

被引：104

作者：

PLA, O ^{[1
]}

NORI, F ^{[1
]}

机构：

[1] UNIV AUTONOMA MADRID, CSIC, INST CIENCIAS MAT, E-28049 MADRID, SPAIN

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.67.919

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the response of pinned flux lattices, under small perturbations in the driving force, below and close to the pinning-depinning transition. For driving Lorentz forces below F(c) (the depinning force at which the whole flux lattice slides), the system has instabilities against small force increases, with a power-law distribution characteristic of self-organized criticality. Specifically, D(d) approximately d-1.3, where d is the displacement of a flux line after a very small force increase. We also study the initial stages of the motion of the lattice once the driving force overcomes the pinning forces.

引用

页码：919 / 922

页数：4