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

doi:10.1088/1674-1056/ab69ef

中国物理B ›› 2020, Vol. 29 ›› Issue (3): 37401-037401.doi: 10.1088/1674-1056/ab69ef

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇下一篇

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

Minsi Li(李敏斯), Jiahong Gu(古家虹), Long Du(杜龙), Hongwei Zhong(钟红伟), Lijuan Zhou(周丽娟), Qinghua Chen(陈庆华)

School of Science, Guangxi University of Science and Technology, Liuzhou 545006, China

收稿日期:2019-12-18 修回日期:2020-01-07 出版日期:2020-03-05 发布日期:2020-03-05
通讯作者: Qinghua Chen E-mail:chenqinghua2002@163.com
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11564003 and 11865005) and the Natural Science Foundation of Guangxi Province of China (Grant No. 2018GXNSFAA281024).

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

Minsi Li(李敏斯), Jiahong Gu(古家虹), Long Du(杜龙), Hongwei Zhong(钟红伟), Lijuan Zhou(周丽娟), Qinghua Chen(陈庆华)

School of Science, Guangxi University of Science and Technology, Liuzhou 545006, China

Received:2019-12-18 Revised:2020-01-07 Online:2020-03-05 Published:2020-03-05
Contact: Qinghua Chen E-mail:chenqinghua2002@163.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11564003 and 11865005) and the Natural Science Foundation of Guangxi Province of China (Grant No. 2018GXNSFAA281024).

摘要/Abstract

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.

关键词: vortex, multi-gap superconductivity, time dependent, finite element technique

Abstract: 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.

Key words: vortex, multi-gap superconductivity, time dependent, finite element technique

中图分类号: (Vortex phases (includes vortex lattices, vortex liquids, and vortex glasses))

74.25.Uv

74.25.Wx (Vortex pinning (includes mechanisms and flux creep)) 74.25.F- (Transport properties)

李敏斯, 古家虹, 杜龙, 钟红伟, 周丽娟, 陈庆华. Time-dependent Ginzburg-Landau equations for multi-gap superconductors[J]. 中国物理B, 2020, 29(3): 37401-037401.

Minsi Li(李敏斯), Jiahong Gu(古家虹), Long Du(杜龙), Hongwei Zhong(钟红伟), Lijuan Zhou(周丽娟), Qinghua Chen(陈庆华). Time-dependent Ginzburg-Landau equations for multi-gap superconductors[J]. Chin. Phys. B, 2020, 29(3): 37401-037401.

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

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

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