Abstract
The Bi2Sr2CaCu2O8+δ system samples doped with Pr on Ca sites were synthesized. Resistivity temperature dependence, X-ray powder diffraction, and photoemission experiments have been performed. Both X-ray diffraction and photoemission measurements show that Pr ion enters the lattice with a valence higher than 3+, which supports the hole-filling mechanism of the suppression of superconductivity.
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Li, Q., Pan, H.B., Zhu, C.G. et al. Substitution Effect of Pr for Ca in Bi2Sr2CaCu2O8+δ System. Journal of Superconductivity 13, 603–606 (2000). https://doi.org/10.1023/A:1007881002778
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DOI: https://doi.org/10.1023/A:1007881002778