Influence of lead on the formation of the 110-K superconducting phase in the Bi-Sr-Ca-Cu-O compounds
E. Chavira, R. Escudero, D. Ríos-Jara, L. M. León
DOI 10.1103/PhysRevB.38.9272 · Physical Review B
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Abstract
The fraction of the 110-K phase in the Bi-Sr-Ca-Cu-O compound is rapidly increased if small amounts of Pb are incorporated in the compound. The maximum Tc(R=0) of 106 K was obtained after a sintering treatment of several days at 860°C. Computer-generated powder diffraction patterns showed, when compared to the measured ones, the possibility for Pb to occupy Ca or Bi sites.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2Ca2Cu6Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 68 | Pressure not reported | zero_resistance |
| Bi2.15Sr1.68Ca1.17Cu2Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 70 | Pressure not reported | zero_resistance |
| Bi2.4Sr2Ca1.6Cu3Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 24 | Pressure not reported | zero_resistance |
| Bi2.2Sr2Ca1.8Cu3Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 30 | Pressure not reported | zero_resistance |
| Bi2Sr2Ca2Cu3Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 76 | Pressure not reported | zero_resistance |
| Bi1.95Sr2Ca2Cu3Pb0.05Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 58 | Pressure not reported | zero_resistance |
| Bi1.8Sr2Ca2Cu3Pb0.2Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 95 | Pressure not reported | zero_resistance |
| Bi1.7Sr2Ca2Cu3Pb0.3Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 99 | Pressure not reported | zero_resistance |
| Bi1.7Sr2Ca2Cu3Pb0.3Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 106 | Pressure not reported | zero_resistance |
| Bi1.9Sr2Ca2Cu3Pb0.3Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 104 | Pressure not reported | zero_resistance |
| Bi1.8Sr2Ca2Cu3Pb0.6Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 104 | Pressure not reported | zero_resistance |
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