BCS versus Josephson pair hopping between the CuO2 layers in high-Tc superconductors
J. Appel, D. Fay
DOI 10.1103/PhysRevB.41.873 · Physical Review B
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Abstract
We start with the two-dimensional (2D) scattering matrix for two electrons of opposite spin and momentum, accounting for the fluctuating pair correlations in a single CuO2 layer, and consider the interlayer pair hopping by (a) BCS scattering out of the layer and (b) Josephson tunneling between layers. The experimental 3D transition temperature Tc is found as a function of the interlayer BCS coupling parameter and the Josephson-tunneling matrix element. We discuss the relative importance of both of these transfer mechanisms for the Y and Tl compounds.
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. | 93 | Pressure not reported | unknown |
| Tl2Ba2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Bi2(Sr,Ca)3Cu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| YBa2Cu3O7-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 87.4 | Pressure not reported | unknown |
| BiSr2.2Ca0.8Cu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| TlBa2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| YBa2Cu3O6.7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 60 | Pressure not reported | unknown |
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