Magnetic fluctuations and spin freezing in nonsuperconducting LiFeAs derivatives

J. D. Wright, M. J. Pitcher, W. Trevelyan-Thomas +5

We present detailed magnetometry and muon-spin rotation data on polycrystalline samples of overdoped, non-superconducting LiFe${}_{1-x}$Ni${}_x$As ($x=0.1,0.2$) and Li${}_{1-y}$Fe$_{…