Transport properties of vortices in easy flow channels: A Frenkel-Kontorova study

被引：51

作者：

Besseling, R ^{[1
]}

Niggebrugge, R ^{[1
]}

Kes, PH ^{[1
]}

机构：

[1] Leiden Univ, Kamerlingh Onnes Lab, NL-2300 RA Leiden, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.82.3144

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Incommensurate easy flow channels in an otherwise perfect vortex lattice are investigated. The associated (point) defects in the lattice inside the channel cause an almost vanishing critical current, as shown by molecular dynamics simulations and a comparison with the Frenkel-Kontorova model. In addition to the normal flux flow behavior, we find a low mobility regime at small drives associated with defect motion. We treat this situation analytically for the case of a single defective vortex row. We also briefly discuss the relation to existing experiments on artificial vortex channels.

引用

页码：3144 / 3147

页数：4

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