Current-voltage characteristics have been calculated for a high-temperature superconductor containing triangular and square periodic arrays of pinning centers with various disorder rates. Non-monotonic dependences of critical current density on the disorder rate have been obtained for the triangular lattice, showing that a perfectly ordered lattice provides smaller critical currents than that with minor distortions, especially at high magnetic fields. For the square lattice, the critical current was mostly declining, with minor peaks at small disorder rates. A thorough analysis of the vortex dynamics has been done, showing the differences in the way vortices move through the disordered lattice and how their paths affect the critical current density.

已经计算了包含具有不同无序率的钉扎中心的三角形和方形周期阵列的高温超导体的电流-电压特性。对于三角晶格，我们获得了临界电流密度对无序率的非单调依赖性，表明完美有序的晶格比具有较小畸变的晶格提供更小的临界电流，特别是在高磁场下。对于方形晶格，临界电流大部分呈下降趋势，在无序率较小时出现较小的峰值。对涡流动力学进行了彻底的分析，显示了涡流穿过无序晶格的方式的差异以及它们的路径如何影响临界电流密度。