Electric-field-gradient–tensor study in YBa2Cu3O7−δ high-Tc superconductors
R. Kamal, Lovleen, Sumanjit, B. R. Sood, K. S. Sidhu
DOI 10.1103/PhysRevB.37.5928 · Physical Review B
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Abstract
Electric-field-gradient– (EFG-) tensor components, at all the nine nonequivalent sites in the unit cell of YBa2Cu3O7−δ superconductors have been calculated on the basis of the point-charge model. Vzz, the principal EFG components and η, the asymmetry parameters at two nonequivalent Cu sites, have also been evaluated as a function of δ. The data reveal several new features of the EFG components in these superconductors and provides a new interpretation for the recently reported Mössbauer and nuclear quadruple resonance spectroscopic results.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| GdBa2(Cu0.94Fe0.06)3O7-δ 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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