Vortex dynamics for low- type-II superconductors

Authors

X B Xu, Nanjing University, CHINA
H Fangohr, School of Eng Sciences, Uni of Southampton, UK
Z H Wang, Nanjing University, CHINA
M Gu, Department of Physics, Nanjing University, CHINA
S.L. Liu, Nanjing University of Posts and Telecommunications
Dongqi Shi, University of WollongongFollow
S. X. Dou, University of WollongongFollow

RIS ID

38376

Publication Details

Xu, X. B., Fangohr, H., Wang, Z. H., Gu, M., Liu, S. L., Shi, D. Q. Dou, S. X. (2011). Vortex dynamics for low- type-II superconductors. Physical Review B: Condensed Matter and Materials Physics, 84 (1), 014515-1-014515-4.

Abstract

Based on a model appropriate for “marginally type-II” superconducting system, we study the dynamics of vortices with competing interactions by Langevin dynamics simulation. In addition to pinned states and plastic flow, we find that the moving vortex system forms ordered bubble configurations and stripe structures, depending on pinning strength and driving force. The vortex system exhibits a marked hysteresis in its velocity-force characteristic, which results from a dynamical stripe reordering due to intervortex attraction.

Grant Number

ARC/DP0770205

Additional Grant Number

http://purl.org/au-research/grants/ARC/DP0770205