Time-dependent Ginzburg–Landau equations for multi-gap superconductors  

作　　者：Minsi Li Jiahong Gu Long Du Hongwei Zhong Lijuan Zhou Qinghua Chen 李敏斯;古家虹;杜龙;钟红伟;周丽娟;陈庆华(School of Science,Guangxi University of Science and Technology,Liuzhou 545006,China)

机构地区：[1]School of Science,Guangxi University of Science and Technology,Liuzhou 545006,China

出　　处：《Chinese Physics B》2020年第3期385-388,共4页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.11564003 and 11865005);the Natural Science Foundation of Guangxi Province of China(Grant No.2018GXNSFAA281024)。

摘　　要：We numerically solve the time-dependent Ginzburg–Landau equations for two-gap superconductors using the finite-element technique. The real-time simulation shows that at low magnetic field, the vortices in small-size samples tend to form clusters or other disorder structures. When the sample size is large, stripes appear in the pattern. These results are in good agreement with the previous experimental observations of the intriguing anomalous vortex pattern, providing a reliable theoretical basis for the future applications of multi-gap superconductors.We numerically solve the time-dependent Ginzburg–Landau equations for two-gap superconductors using the finite-element technique. The real-time simulation shows that at low magnetic field, the vortices in small-size samples tend to form clusters or other disorder structures. When the sample size is large, stripes appear in the pattern. These results are in good agreement with the previous experimental observations of the intriguing anomalous vortex pattern, providing a reliable theoretical basis for the future applications of multi-gap superconductors.

关 键 词：vortex multi-gap SUPERCONDUCTIVITY time dependent finite element technique 

分 类 号：TM26[一般工业技术—材料科学与工程] O469[电气工程—电工理论与新技术]