Oxygen-vacancy ordering in the Ba2YCu3O7−x (0≤x≤1) superconducting system
C. Chaillout, M. A. Alario-Franco, J. J. Capponi, J. Chenavas, J. L. Hodeau, M. Marezio
DOI 10.1103/PhysRevB.36.7118 · Physical Review B
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Abstract
Diffuse scattering streaks or bands have been observed in electron diffraction photographs for samples belonging to the superconducting system Ba2YCu3O7−x (0≤x≤1). In situ experiments show that this diffuse scattering can be associated with short-range ordering of oxygen vacancies. The same vacancy ordering occurs in previously reduced samples. Three types of diffuse scattering are observed, each corresponding to a short-range-order scheme.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Ba2YCu3O7-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Ba2YCu3O7 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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