Effect of heavy-ion irradiation on London penetration depth in over-doped Ba(Fe,Co)2As2

J. Murphy, M. A. Tanatar, Hyunsoo Kim +7

Irradiation with 1.4 GeV ${}^{208}$Pb ions was used to induce artificial disorder in single crystals of iron-arsenide superconductor Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$ and to study its e…