Inhomogeneous slowing down of spin fluctuations induced by charge stripe   order in 1/8-doped lanthanum cuprates
  We report $^{139}$La nuclear magnetic resonance (NMR) measurements on La$_{2-x}$Sr$_x$CuO$_4$ ($0.07\leq x \leq 0.15$) and La$_{2-x}$Ba$_x$CuO$_4$ ($x=1/8$) single crystals, focusing on the spin freezing observed in 1/8-doped lanthanum cuprates. Charge stripe order seems to induce the inhomogeneous slowing down of spin fluctuations toward spin order and compete with superconductivity. 
S.-H. Baek, M. H\"ucker, A. Erb, G. D. Gu, B. B\"uchner, and H.-J.   Grafe
cond-mat.supr-con