| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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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 |
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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.
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Received: 18 December 2019
Revised: 07 January 2020
Accepted manuscript online:
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PACS:
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74.25.Uv
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(Vortex phases (includes vortex lattices, vortex liquids, and vortex glasses))
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74.25.Wx
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(Vortex pinning (includes mechanisms and flux creep))
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74.25.F-
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(Transport properties)
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| Fund: 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). |
Corresponding Authors:
Qinghua Chen
E-mail: chenqinghua2002@163.com
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Cite this article:
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 2020 Chin. Phys. B 29 037401
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