Composition-dependent superconductivity in La2-xSrxCuO4-

R. B. Van Dover, R. J. Cava, B. Batlogg, E. A. Rietman

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136 Scopus citations


We report the dependence of the superconducting critical temperature on x for a series of La2-xSrxCuO4- samples prepared under identical conditions. A strong peak in the fraction of the sample which is superconducting occurs near x=0.15, the composition which also gives the highest transition temperatures as measured by resistivity and the dc Meissner effect. Relatively high onset temperatures are observed, and we infer the presence of another, possibly metastable, material with a critical temperature substantially higher than that of bulk K2NiF4 structure-type La2-xSrxCuO4-.

Original languageEnglish (US)
Pages (from-to)5337-5339
Number of pages3
JournalPhysical Review B
Issue number10
StatePublished - 1987
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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