Intrinsic magnetic properties of NdFeAsO${}_{0.9}$F${}_{0.1}$ superconductor from local and global measurements

R. Prozorov, M. E. Tillman, E. D. Mun +1

Magneto-optical imaging was used to study the local magnetization in polycrystalline NdFeAsO${}_{0.9}$F${}_{0.1}$ (NFAOF). Individual crystallites up to $\sim 200\times 100\times 30$ $μm^…