We have found a little suppression of superconductivity at $x=0.21\mathrm{}$ in ${\mathrm{La}}_{2-x}{\mathrm{Sr}}_x{\mathrm{CuO}}_4$ single crystals and, moreover, a giant suppression of superconductivity at $x=0.21\mathrm{}$ through the 1% substitution of Zn for Cu. In the Zn-substituted ${\mathrm{La}}_{2-x}{\mathrm{Sr}}_x{\mathrm{Cu}}_{1-y}{\mathrm{Zn}}_y{\mathrm{O}}_4$ single crystal with $x=0.21\mathrm{}$ and $y=0.01,$ the resistivity exhibits an upturn at low temperatures below $\sim 80$ K. These results suggest that the dynamical stripe correlations of spins and holes are pinned by a small amount of Zn at $x=0.21,$ leading to a static stripe order and the giant suppression of superconductivity, as in the case of $x=\mathrm{0.115.}\mathrm{}$

• Received 10 July 2000

DOI:https://doi.org/10.1103/PhysRevB.62.R11981