Effects of substitution of O by S and Cu by Fe on superconductivity in YBa2Cu3O7
I. Felner, I. Nowik, Y. Yeshurun
DOI 10.1103/PhysRevB.36.3923 · Physical Review B
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Abstract
The single-phase high-Tc superconductors YBa2Cu3O7−xSx and YBa2Cu3(1−y)Fe3yO7 have been prepared and studied by dc magnetometry. YBa2Cu3O6S has a larger unit cell than YBa2Cu3O7, and yet has the same Tc; its phase transition is sharper and displays full Meissner effect. Substitution of Cu by Fe leads to a sharp decrease in Tc.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | unknown |
| YBa2Cu3O6S Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | unknown |
| YBa2Cu3O6Cl Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 72 | Pressure not reported | unknown |
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