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EnglishThe tunneling conductances of 90- and 60-K YBCO-based junctions in both the superconducting and the normal state have been quantitatively modeled by a superposition of two BCS-like contributions and a linear one. Strong-coupling superconductivity in the CuO2 planes with 2Δ1/kBTc1=4.1 and weak-coupling superconductivity with 2Δ2/kBTc2=2.1 along the CuO chains are inferred. A consistent explanation of the experiments is found by assuming an internal proximity effect between strongly and weakly superconducting layers.
| Titolo: | Model for tunneling experiments on the 90- and the 60-K YBa_2Cu_3O_{7-delta} phases | |
| Autori: | ||
| Data di pubblicazione: | 1992 | |
| Rivista: | ||
| Abstract: | The tunneling conductances of 90- and 60-K YBCO-based junctions in both the superconducting and the normal state have been quantitatively modeled by a superposition of two BCS-like contributions and a linear one. Strong-coupling superconductivity in the CuO2 planes with 2Δ1/kBTc1=4.1 and weak-coupling superconductivity with 2Δ2/kBTc2=2.1 along the CuO chains are inferred. A consistent explanation of the experiments is found by assuming an internal proximity effect between strongly and weakly superconducting layers. | |
| Handle: | http://hdl.handle.net/11386/4343453 | |
| Appare nelle tipologie: | 1.1.1 Articolo su rivista con DOI |
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