Metastable filamentary vortex flow in thin film superconductors

被引：98

作者：

GronbechJensen, N

Bishop, AR

Dominguez, D

机构：

[1] Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.76.2985

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present simulations of vortex dynamics in amorphous two-dimensional thin film superconductors, using a new exact method to evaluate long-range interactions between vortices. We find that the onset of dissipation for increasing current is dominated by filamentary channels of flow which are stable in a finite range of bias current. This results in novel steps in the differential resistance, which are strongly history dependent. Our results are in good agreement with recent experiments on amorphous Mo77Ge23 superconducting thin films.

引用

页码：2985 / 2988

页数：4

共 21 条

[1] PEAK EFFECT AND ANOMALOUS FLOW BEHAVIOR OF A FLUX-LINE-LATTICE [J].