Emergence of superconductivity in a bi-sr-cu-o system
Gang Xiao, M. Z. Cieplak, C. L. Chien
DOI 10.1103/PhysRevB.38.11824 · Physical Review B
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Abstract
Solid solutions of (Bi2−xSrx)2CuO6 (0.8≤x≤1.5) have been synthesized. A metal-insulator transition is observed as the Sr composition is reduced to 0.9. The emergence of superconductivity depends critically on the minimum Sr content. Only when x≥0.95, does the superconductivity occur. The behavior is different from that observed in the La2−xSrxCuO4 system where doping La2CuO4 by Sr brings the system into a metallic and superconducting phase, with gradually increasing Tc.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| (Bi2-xSrx)2CuO6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 7 | Pressure not reported | midpoint |
| (Bi2-xSrx)2CuO6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 7 | Pressure not reported | onset |
| Bi2Sr2CuO6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 7 | Pressure not reported | midpoint |
| BiSrCuO3.5+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 7 | Pressure not reported | unknown |
| La2-xSrxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 38 | Pressure not reported | unknown |
| Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 80 | Pressure not reported | unknown |
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