Possible highTc superconductivity in the Ba−La−Cu−O system

@article{Bednorz1986PossibleHS,
  title={Possible highTc superconductivity in the Ba−La−Cu−O system},
  author={J. G. Bednorz and K. M{\"u}ller},
  journal={Zeitschrift f{\"u}r Physik B Condensed Matter},
  year={1986},
  volume={64},
  pages={189-193}
}
  • J. G. Bednorz, K. Müller
  • Published 1986
  • Materials Science, Physics
  • Zeitschrift für Physik B Condensed Matter
    • Metallic, oxygen-deficient compounds in the Ba−La−Cu−O system, with the composition BaxLa5−xCu5O5(3−y) have been prepared in polycrystalline form. Samples withx=1 and 0.75,y>0, annealed below 900°C under reducing conditions, consist of three phases, one of them a perovskite-like mixed-valent copper compound. Upon cooling, the samples show a linear decrease in resistivity, then an approximately logarithmic increase, interpreted as a beginning of localization. Finally an abrupt decrease by up to… CONTINUE READING
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