[6p-S42-1~18] 11.3 Critical Current, Superconducting Power Applications

[6p-S42-16] TDGL simulation on the motion of flux lines in a thin superconducting wire in a transverse magnetic field

〇Kenta Tanimura¹, Soji Otabe¹, Masaru Kiuchi¹, Yasunori Mawatari², Tetsuya Matsuno³ (1.Kyushu Inst. of Tech., 2.AIST, 3.Ariake Coll.)

Keywords:superconductivity, critical current density

We numerically investigate the vortex dynamics in a thin superconducting wire exposed to a transport current and a transverse magnetic field. By using the Euler method, we numerically solve the time-dependent Ginzburg-Landau (TDGL) equations for a superconducting wire, of which diameter is smaller than the London penetration depth. We show the three-dimensional dynamics of vortices by plotting the contour surfaces of the superfluid density|Ψ|². As a result, it was found that the magnetic field dependence of critical current density showed the peak effect for the case of the line pinning centers.