A variety of vortex state solutions of Ginzburg-Landau equation on superconducting mesoscopic plates

29th International Symposium on Superconductivity

Sato, O.^1 ; Kato, M.^2

Department of Liberal Arts, Osaka Prefecture University, College of Technology, Neyagawa, Osaka

572-8572, Japan^1

Department of Mathematical Sciences, Osaka Prefecture University, Sakai, Osaka

599-8531, Japan^2

关键词: Calculation results;    Ginzburg-Landau equations;    Gradient magnetic field;    Meta-stable state;    Mirror symmetry;    Numerical solution;    Square plates;    Vortex configurations;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/871/1/012029/pdf
DOI  :  10.1088/1742-6596/871/1/012029

来源: IOP

【 摘 要 】

We report numerical solutions of the Ginzburg-Landau equation for superconducting mesoscopic square plate under a gradient magnetic field that changes linearly in strength in one direction. All the obtained vortex configurations have mirror symmetry. We found two different solutions containing the same number of the total flux quantum under the same field. Our calculation results imply that the obtained metastable states can be actually observed at almost the same frequency as the most stable state.