Superconductivity up to 114 K in the Bi-Al-Ca-Sr-Cu-O compound system without rare-earth elements
C. W. Chu, J. Bechtold, L. Gao, P. H. Hor, Z. J. Huang, R. L. Meng, Y. Y. Sun, Y. Q. Wang, Y. Y. Xue
DOI 10.1103/PhysRevLett.60.941 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
Stable superconductivity up to 114 K has been reproducibly detected in Bi-Al-Ca-Sr-Cu-O multiphase systems without any rare-earth elements. Pressure has only a slight positive effect on Tc. These observations provide an extra material base for the study of the mechanism of high-temperature superconductivity and also the prospect of reduced material cost for future applications of superconductivity.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| BiCaSrCuO7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 114 | Pressure unresolved | onset |
| BiCaSrCuO7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 110 | Pressure unresolved | onset |
| BiCaSrCuO7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 81 | Pressure unresolved | midpoint |
| BiCaSrCu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 114 | Pressure unresolved | onset |
| Bi2Sr2Cu2O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 22 | Pressure not reported | unknown |
| Bi2SrCu2O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 5 | Pressure unresolved | unknown |
Similar papers
Superconductivity in the high-Tc Bi-Ca-Sr-Cu-O system: Phase identification
similarity 0.96R. M. Hazen et al.
Source status unknown — claims are unverified
Emergence of superconductivity in a bi-sr-cu-o system
similarity 0.95Gang Xiao et al.
Source status unknown — claims are unverified
Superconducting and semiconducting properties of the Bi2Sr2Ca1−xGaxCu2Oy system
similarity 0.95R. K. Nkum & W. R. Datars
Source status unknown — claims are unverified
Magnetic field dependence of the resistivity and susceptibility of the above-100-K Bi-Sr-Ca-Cu superconductor
similarity 0.95S. S. P. Parkin et al.
Source status unknown — claims are unverified
Stability of superconducting phases in Bi-Sr-Ca-Cu-O and the role of Pb doping
similarity 0.95S. X. Dou et al.
Source status unknown — claims are unverified
Microstructure and properties of the ∼90-K superconductor Bi2Sr3−xCaxCu2O8+δ
similarity 0.95Z. Iqbal et al.
Source status unknown — claims are unverified