EFFECT OF SILVER IN BI1.7PB0.3SR2-XAGXCA2CU3OY
1995
The oxide superconductor Bi1.7Pb0.3Sr2−xAgxCa2Cu3Oy has been synthesized under the ordinary pressure. The x‐ray diffraction spectra of these specimens show the presence of only 2212 phase when x<0.4, and the transition temperature achieved 99 K. With the x increase, the structure of sample transfers to 2223 phase. The investigation indicates that substitution of Sr2+ by Ag1+ increases the distance between layers. This may respond to Tc increase in 2212 phase and 2223 phase form at a relatively low temperature.
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