High-Tc superconductivity of YBa2Cu3O7/PrBa2Cu3O7 superlattices: An interlayer-coupling model
A. K. Rajagopal, S. D. Mahanti
DOI 10.1103/PhysRevB.44.10210 · Physical Review B
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Abstract
A simple model of intralayer and interlayer couplings based on a generalized BCS pairing theory of superlattices of layered superconductors is used to correlate the recently observed trends in the Tc’s of YBa2Cu3O7/PrBa2Cu3O7 superlattices. These observed trends in the Tc’s are obtained in this model if certain inequalitities are satisfied among the direct and that mediated by the PrBa2Cu3O7 intercell-interlayer, intracell-interlayer couplings. These inequalitities among the couplings may be reconciled in terms of the chemical structure of these systems.
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 |
| (Ba1-xKx)BiO3 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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