Kink-antikink vortex transfer in periodic-plus-random pinning potential: Theoretical analysis and numerical experiments

被引：10

作者：

Pogosov, W. V. ^{[1
,2
]}

Zhao, H. J. ^{[1
]}

Misko, V. R. ^{[1
]}

Peeters, F. M. ^{[1
]}

机构：

[1] Univ Antwerp, Dept Fys, B-2020 Antwerp, Belgium

[2] Russian Acad Sci, Inst Theoret & Appl Electrodynam, Moscow 125412, Russia

来源：

PHYSICAL REVIEW B | 2010年 / 81卷 / 02期

关键词：

DYNAMIC PHASES; SUPERCONDUCTORS; LATTICES; VORTICES;

D O I：

10.1103/PhysRevB.81.024513

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influence of random pinning on the vortex dynamics in a periodic square potential under an external drive is investigated. Using numerical experiments and theoretical approach, we found several dynamical regimes of vortex motion that are different from the ones for a regular pinning potential. Vortex transfer is controlled by kinks and antikinks, which either pre-exist in the system or appear spontaneously in pairs and then propagate. When kinks and antikinks collide, they annihilate. We provide clear physical interpretations of the observed features.

引用

页数：7

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