Enhancement of the critical current by surface irregularities in Fe-based superconductors

I. F. Llovo, J. Mosqueira, Ding Hu +2

The critical current $I_c$ of single crystals of the iron pnictide superconductor BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$, has been studied through measurements of magnetic hysteresis cycles…