中国物理B ›› 2004, Vol. 13 ›› Issue (5): 737-745.doi: 10.1088/1009-1963/13/5/028
• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇 下一篇
廖红印, 周世平, 施晓蕴
Liao Hong-Yin (廖红印), Zhou Shi-Ping (周世平), Shi Xiao-Yun (施晓蕴)
摘要: This article presents numerical solutions of the periodic time-dependent Ginzburg-Landau model for the type-II superconductors by a finite-difference approximation. Both the static and dynamical properties of a single vortex are studied as the external magnetic field varies. Vortex and anti-vortex can coexist and annihilate with time in the case of no external magnetic field, while the vortex will approach a steady state in the presence of magnetic field. We also study vortex dynamical behaviours while pinning centres exist in the sample and find that the pinning site, which has a significant potential to keep the vortex from moving, may trap the vortex.
中图分类号: (Finite-difference methods)