O17 NMR spectroscopy of Bi2Sr2CaCu2O8+x high-Tc superconductor
A. Trokiner, R. Mellet, A-M. Pougnet, D. Morin, Y. M. Gao, J. Primot, J. Schneck
DOI 10.1103/PhysRevB.41.9570 · Physical Review B
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Abstract
We have investigated at room temperature and at 7 K the O17 NMR spectrum of a chemically and structurally characterized enriched17 powder of Bi2Sr2CaCu2O8+x superconductor. Using the frequency dependence of the spectrum and T1 relaxation-time measurements, we were able to infer that the two lines constituting the spectra can be assigned to the oxygen nuclei in the SrO planes and to the oxygen nuclei in the CuO2 planes. The absence of the expected BiO line is accounted for, on the basis of the incommensurate superstructure existing in these compounds.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2O8+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 80 | Pressure not reported | onset |
| Bi2Sr2CaCu2O8+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 65 | Pressure not reported | zero_resistance |
| YBa2Cu3O7-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| LaSrCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Bi2Sr2Ca2Cu3Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Tl2Sr2CaCu2O8+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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