双能隙介观超导体的涡旋结构模拟

Numerical simulation of vortex structure in mesoscopic two-gap superconductor

本文运用了含时Ginzburg-Landau理论研究了双能带结构的介观超导体在外磁场作用下涡旋随时间的演化.给出了实际温度在s波和d波的临界温度之间s波、d波以及磁场的分布,从理论上模拟得到涡旋进入和退出样品的磁场"过热"与"过冷"现象,以及介观超导样品边界对涡旋结构分布的影响.

In this paper, the evolution of vortex configuration for mesoscopic two-gap superconductor is investigated by the time-dependent Ginzburg-Landau theory in the presence of an externally applied field. The vortex configurations of s-wave and d-wave, and the distribution of magnetic field are given when the temperature is between critical temperatures of s-wave and d-wave. In theory, the over-cold and the over-hot field, and the boundary effect on vortex are simulated when the magnetic flux penetrates the superconductor.