Correlation between the superconducting transition temperature and crystal structure of high-Tc cuprate compounds
作者： D.M. de Leeuw , W.A. Groen , L.F. Feiner , E.E. Havinga
DOI: 10.1016/0921-4534(90)90564-U
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摘要: Abstract For the various p-type cuprate superconductors we have calculated formal valence for copper and oxygen ions in central CuO2 planes from bond lengths according to Zachariasen rules. It is shown that all structures these values correlate remarkably well with maximum critical temperature. The correlation found shows Tc, max increases more holes prefer sites over sites. In a correlated electron picture this implies higher value U − Δ + W 2 .
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