Finite Element Treatment of Vortex States in 3D Mesoscopic Cylindrical Superconductors in a Tilted Magnetic Field
Lin Penga, Yahua Hu b, Zhijian Li a, Ke Deng a, Yanyan Zhu a, Li Xu a and Yun Zhou c
aDepartment of Physics, Shanghai University of Electric Power, Shanghai 201300, China
bCollege of Nanhu, Jiaxing University, Jiaxing, Zhejiang 314001, PR China
cDepartment of Physics, China Jiliang University, Hangzhou 310018, China
Received: July 3, 2017; In final form: October 21, 2017
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The time-dependent Ginzburg-Landau equations have been solved numerically by a finite element analysis for the mesoscopic superconducting samples with cylindrical shape in a uniform axial magnetic field. We obtain the different vortex patterns as a function of the applied field perpendicular to its surface. We find that multi-vortex states are ground state in three-dimensional mesoscopic cylinders. These results show that our approach is an effective and useful to interpret experimental data on vortex states in the mesoscopic superconductors.

DOI: 10.12693/APhysPolA.133.152
Topics: three-dimensional mesoscopic cylinders, TDGL equations, finite element method, vortex states