S. Ueki

TL;DR: In this article, a low-energy spin-fluctuation peak position shifts from ($\frac{1}{2}$ to ($ \frac{ 1}{2$\ifmmode\pm\else\textpm\fi{ \ensuremath{\delta}=x$, and the peak momentum width of the spin fluctuations at low energies is small throughout the superconducting concentration region.

TL;DR: In this paper, Neutron-scattering experiments have been performed on lightly doped La{sub 2{minus}x}Sr{sub x}CuO{sub 4} single crystals in both the insulating (x=0.03,0.04, 0.06) and superconducting (x = 0.05) regions.

TL;DR: In this article, Neutron-scattering experiments have been performed on lightly-doped La(2-x)Sr(x)CuO4 single crystals in both the insulating (x=0.03, 0.04,0.05) and superconducting (x = 0.06) regions.

TL;DR: In this paper, a revised magnetic phase diagram in the lightly doped region of a cluster spin-glass was proposed, and the Curie constants calculated from the in-plane susceptibility are independent of the Sr concentration.

TL;DR: In this article, the elastic magnetic peaks appear at low temperatures in both insulating ( x = 0.02-0.05) and superconducting (x =0.06) samples, and the integrated intensity drastically changes across the low temperature insulator-superconductor boundary.