Effect of oxygen vacancy on magnetic and superconducting properties in La1.82Sr0.18CuO4

1992 
Abstract The role of oxygen vacancies in the CuO 2 plane was investigated in La 1.82 Sr 0.18 CuO 4 by measuring the normal-state magnetic susceptibility. We found that the oxygen vacancies hardly affected the two-dimensional spin correlation when the reduction of the hole density was taken into account. In contrast, the superconductivity broke down much faster than the reduction rate of holes.
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