Role of interfaces in the proximity effect in anisotropic superconductors
E. Polturak, G. Koren, D. Cohen, O. Nesher, R. G. Mints, I. Snapiro
DOI 10.1103/PhysRevB.57.R14068 · Physical Review B
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Abstract
We report measurements of the critical temperature of YBa2Cu3O7−YBCu3−xCoxO7+δ superconductor–normal-metal (S−N) bilayer films. Depending on the morphology of the S−N interface, the coupling between S and N layers can be turned on to depress the Tc of S by tens of degrees, or turned down so the layers appear almost totally decoupled. This effect can be explained by the mechanism of quasiparticle transmission into an anisotropic superconductor.
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. | 85 | Pressure not reported | unknown |
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