Coexistence of magnetic fluctuations and superconductivity in the pnictide high temperature superconductor SmFeAsO${}_{1-x}$F${}_x$ measured by muon spin rotation

A. J. Drew, F. L. Pratt, T. Lancaster +11

Muon-spin rotation experiments were performed on the pnictide high temperature superconductor SmFeAsO${}_{1-x}$F${}_x$ with x=0.18 and 0.3. We observed an unusual enhancement of slow…