Transition from turbulent to nearly laminar vortex flow in superconductors with periodic pinning

被引：59

作者：

Gutierrez, J. ^{[1
]}

Silhanek, A. V. ^{[1
]}

Van de Vondel, J. ^{[1
]}

Gillijns, W. ^{[1
]}

Moshchalkov, V. V. ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Nanoscale Superconduct & Magnetism Grp, Inst Nanoscale Phys & Chem, B-3001 Louvain, Belgium

来源：

PHYSICAL REVIEW B | 2009年 / 80卷 / 14期

关键词：

DYNAMIC PHASES; VORTICES; DEFECTS; FILMS; LATTICES;

D O I：

10.1103/PhysRevB.80.140514

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We revisit the vortex dynamics in Al thin films containing an artificial periodic array of antidots by means of electrical transport measurements. We clearly identify a turbulent to laminarlike vortex flow transition which manifests itself as a negative differential resistivity. This transition is accompanied by a strong irreversibility in the voltage-current characteristics. The dynamical phase diagrams obtained as a function of commensurability, temperature, and driving force are in good agreement with the early predictions by Reichhardt et al. [Phys. Rev. Lett. 78, 2648 (1997)] based on molecular dynamic simulations.

引用

页数：4

共 21 条

[1] COMPOSITE FLUX-LINE LATTICES STABILIZED IN SUPERCONDUCTING FILMS BY A REGULAR ARRAY OF ARTIFICIAL DEFECTS [J].