Photoemission study of the new high-temperature superconductor Bi-Ca-Sr-Cu-O
M. Onellion, Ming Tang, Y. Chang, G. Margaritondo, J. M. Tarascon, P. A. Morris, W. A. Bonner, N. G. Stoffel
DOI 10.1103/PhysRevB.38.881 · Physical Review B
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Abstract
We present the first photoemission data on the recently discovered family of high-temperature superconductors that do not include rare earths. Synchrotron-radiation photoemission spectra were taken both on sintered and on cleaved single-crystal specimens of Bi4Ca3Sr3Cu4O16+x. Both samples were single phase and had sharp superconducting transitions at 85 K. The differences and similarities with respect to YBa2Cu3O7−x are discussed, and the data are compared to the results of one-electron density-of-states calculations.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi4Ca3Sr3Cu4O16+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 85 | Pressure not reported | unknown |
| Bi4Ca3Sr3Cu4O16+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 85 | Pressure not reported | unknown |
| Bi4Ca3Sr3Cu4O16+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 85 | Pressure not reported | unknown |
| Bi4Ca3Sr3Cu4O16+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 85 | Pressure not reported | unknown |
| YBa2Cu3O7-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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