Superconductivity in the compound system La-Ca(Sr)-Cu-O

Sampathkumaran, E. V. ; Paulose, P. L. ; Grover, A. K. ; Nagarajan, V. ; Dhar, S. K. (1987) Superconductivity in the compound system La-Ca(Sr)-Cu-O Journal of Physics F: Metal Physics, 17 (5). L87-L90. ISSN 0305-4608

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DC magnetic susceptibility ( chi ) and electrical resistivity ( rho ) measurements in the compound La1.8Sr0.2CuO4 prove the existence of a superconducting phase transition around Tc=36 K in conformity with a recent report (Cava et al., 1987). The compounds La2-xCaxCuO4 (x=0.1, 0.15 and 0.2) exhibit superconductivity at lower temperatures. No correlation is found between Tc and the size of the cation substituted at the La site.

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Deposited On:06 Jun 2012 13:43
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