Effect of oxygen deficiency on the normal and superconducting properties of YBa2Cu3O7−δ
S. I. Park, C. C. Tsuei, K. N. Tu
DOI 10.1103/PhysRevB.37.2305 · Physical Review B
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Abstract
Resistivity and structural studies on oxygen-deficient single-phase samples of polycrystalline YBa2Cu3O7−δ are presented. The oxygen content is controlled through annealing in He atmosphere. By analyzing the behavior of the normal-state resistivity as a function of δ in terms of one-dimensional conduction, we provide evidence that one-dimensional CuO chains are responsible for the dominant normal-state conduction and the superconductivity at 91 K. The effects of oxygen deficiency on the superconducting properties are also discussed.
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. | 91 | Pressure not reported | unknown |
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