Identifying the superconducting pairing state of high-Tc oxides by the Josephson effect
Weiyi Zhang
DOI 10.1103/PhysRevB.52.3772 · Physical Review B
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Abstract
The Josephson junction consisting of high-Tc superconductor, normal metal, and high-Tc superconductor is studied microscopically using the quasiclassical theory. For a d-wave pairing state and certain crystal orientations of the two superconductors, the main Shapino step is found at V=hν/4e and the diffraction pattern has the form Imax(Φ)=Ic‖sin(2πΦ/Φ0)/(2πΦ/Φ0)‖. The experimental verification of this property can be used to distinguish unambiguously the possible d-wave pairing state in the high-Tc superconductors from the conventional s-wave or extended s-wave pairing states. Our result is also discussed in comparison with those obtained from other types of Josephson junctions.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBaCuO 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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