Simulation of narrow-band noise induced by vortex dynamics in type-II superconducting films with periodic pinning arrays

We performed simulations of the vortex dynamics in the 2D system with a periodic pinning array to investigate the origin of narrow-band noise (NBN) in type-II superconducting films. The simulations show that the periodic pinning potential generated NBN and the first peak frequency of NBN was proportional to the voltage. Furthermore, it is shown that the initial vortex arrangement affected the first peak frequency.