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Physical Review B
The magnetic properties of the Zn-substituted overdoped high-T_c superconductor La_2-xSr_xCu_1-yZn_yO_4 have been studied by magnetization measurements and neutron scattering. Magnetization measurements reveal that for Zn-free samples with x ≥ 0.22 a Curie term is induced in the temperature dependence of the magnetic susceptibility implying the existence of local paramagnetic moments. The induced Curie constant corresponds to a moment of 0.5 μ_B per additional Sr^2+ ion that exceeds x=0.22.doi:10.1103/physrevb.72.064521 fatcat:2vpk5atmgfc6bh3xzj3oyavtre