Influence of Lattice Defect to Vortex Flow on Type II Superconductor

Adding defect on type II superconductor can influence to vortex dynamic. It declares vortex movement, so speed of vortex is more stable. In this research, we applied lattice defect. In case to study dynamics of the vortex in type II superconductor material, this study was based on numerical solution of the Time-Dependent Ginzburg Landau (TDGL) equations by means of finite difference method with Forward Time Centred Space (FTCS) scheme. Applied external current density Je and external magnetic field He to superconductor material generate a vortex flow from higher magnetic field to lower magnetic field. Furthermore, applied external current density Je without external magnetic field He generates vortex flow between lattice defects. (paper)