Suppression of superconductivity in the L1−xPrxBa1.7Sr0.3Cu3O7 (L=Yb and Lu) system: Observation of the hole localization effect
V. Badri, U. V. Varadaraju
DOI 10.1103/PhysRevB.52.10504 · Physical Review B
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Abstract
Compounds in the system L1−xPrxBa1.7Sr0.3Cu3O7 (L=Yb and Lu) were synthesized to study the effect of Pr substitution on superconductivity. The nature of variation of Tc with Pr concentration is significantly different from that in other Pr-doped L-123 systems and deviates from Abrikosov-Gor’kov-like behavior. The results are explained on the basis of hole localization and magnetic pair-breaking mechanisms. The ion size effect on Tc is attributed to the dependence of the extent of orthorhombicity and oxygen ordering on the L ion leading to retention of mobile holes in the CuO2 planes.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| PrBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| YbBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | unknown |
| Yb1-xPrxBa1.7Sr0.3Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Lu1-xPrxBa1.7Sr0.3Cu3O7 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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