Determination of anisotropic Hc2 up to 60 T in (Ba0.55K0.45)Fe2As2 single crystals

M. Altarawneh, K. Collar, C. H. Mielke +3

The radio frequency penetration depth was measured in the superconductor (Ba${}_{0.55}$K${}_{0.45}$)Fe${}_2$As${}_2$ under pulsed magnetic fields extending to 60 tesla and down to 14 K…