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Role of Interfaces in the Proximity Effect in Anisotropic Superconductors

Emil Polturak·Gad Koren·David Cohen·Ofer Nesher·Roman Mints·Igor Snapiro
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Abstract

We report measurements of the critical temperature of YBCO-Co doped YBCO Superconductor-Normal 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 critical temperature of S by tens of degrees, or turned down so the layers appear almost totally decoupled. This novel effect can be explained by the mechanism of quasiparticle transmission into an anisotropic superconductor.

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Emil Polturak, Gad Koren, David Cohen, Ofer Nesher, Roman Mints, Igor Snapiro. 1998-03-30. Role of Interfaces in the Proximity Effect in Anisotropic Superconductors. https://doi.org/10.1103/physrevb.57.r14068

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