Spin freezing and magnetic inhomogeneities in bilayer manganites

A. I. Coldea, S. J. Blundell, C. A. Steer +2

We have performed a muon spin rotation study on polycrystalline samples of electron-doped layered manganites, La${}_{2-2x}$Sr${}_{1+2x}$Mn${}_2$O${}_7$ (0.4< x<1), in order to investigate…